diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/README.md b/Test Cases/v3.0/Visualization/Topics with different models visible/README.md
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+++ b/Test Cases/v3.0/Visualization/Topics with different models visible/README.md	
@@ -0,0 +1,16 @@
+# Topics with different models visible
+
+This test case verifies support for correct handling of which models should be visible when displaying a viewpoint.
+
+## Testing process
+
+1. Load _Architectural.ifc_ and _MEP.ifc_ from the test cases root directory.
+2. Import the bcf file.
+3. Verify the bcfzip was imported correctly:
+
+> Topic named "Topics with different model visible - MEP" should only display the MEP model when visualized.
+> Topic named "Topics with different model visible - Architectural" should only display the Architectural model when visualized.
+
+4. Export the topic(s) you imported to _exported.bcf_.
+5. Verify that no information was lost during the export.
+
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/Topics with different models visible.bcf b/Test Cases/v3.0/Visualization/Topics with different models visible/Topics with different models visible.bcf
new file mode 100644
index 0000000..0dc6aa4
Binary files /dev/null and b/Test Cases/v3.0/Visualization/Topics with different models visible/Topics with different models visible.bcf differ
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/73ff1e90-e8f3-45e3-a973-b4fdcb338aa0/Snapshot_441baec2-8eb7-481d-9ad7-c7eb3996ab66.png b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/73ff1e90-e8f3-45e3-a973-b4fdcb338aa0/Snapshot_441baec2-8eb7-481d-9ad7-c7eb3996ab66.png
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Binary files /dev/null and b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/73ff1e90-e8f3-45e3-a973-b4fdcb338aa0/Snapshot_441baec2-8eb7-481d-9ad7-c7eb3996ab66.png differ
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/73ff1e90-e8f3-45e3-a973-b4fdcb338aa0/Viewpoint_441baec2-8eb7-481d-9ad7-c7eb3996ab66.bcfv b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/73ff1e90-e8f3-45e3-a973-b4fdcb338aa0/Viewpoint_441baec2-8eb7-481d-9ad7-c7eb3996ab66.bcfv
new file mode 100644
index 0000000..f59e444
--- /dev/null
+++ b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/73ff1e90-e8f3-45e3-a973-b4fdcb338aa0/Viewpoint_441baec2-8eb7-481d-9ad7-c7eb3996ab66.bcfv	
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<VisualizationInfo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Guid="441baec2-8eb7-481d-9ad7-c7eb3996ab66" xsi:schemaLocation="visinfo.xsd">
+    <Components>
+        <Selection/>
+        <Visibility DefaultVisibility="true">
+            <ViewSetupHints SpacesVisible="false" SpaceBoundariesVisible="false" OpeningsVisible="false"/>
+            <Exceptions>
+                <Component IfcGuid="1bbI761TbBCOoIa5Kt6PXt">
+                    <OriginatingSystem>https://bimsync.com</OriginatingSystem>
+                </Component>
+                <Component IfcGuid="1m5wAJelDFdhn6qBdOGjos">
+                    <OriginatingSystem>https://bimsync.com</OriginatingSystem>
+                </Component>
+            </Exceptions>
+        </Visibility>
+        <Coloring/>
+    </Components>
+    <PerspectiveCamera>
+        <CameraViewPoint>
+            <X>20.369158220868236</X>
+            <Y>-21.27082494247169</Y>
+            <Z>13.825736899981802</Z>
+        </CameraViewPoint>
+        <CameraDirection>
+            <X>-0.577350269189626</X>
+            <Y>0.5773502691896258</Y>
+            <Z>-0.5773502691896255</Z>
+        </CameraDirection>
+        <CameraUpVector>
+            <X>-0.40824829046386285</X>
+            <Y>0.4082482904638628</Y>
+            <Z>0.8164965809277263</Z>
+        </CameraUpVector>
+        <FieldOfView>60.0</FieldOfView>
+        <AspectRatio>1.6359794403283199</AspectRatio>
+    </PerspectiveCamera>
+    <Lines/>
+    <ClippingPlanes/>
+    <Bitmaps/>
+</VisualizationInfo>
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/73ff1e90-e8f3-45e3-a973-b4fdcb338aa0/markup.bcf b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/73ff1e90-e8f3-45e3-a973-b4fdcb338aa0/markup.bcf
new file mode 100644
index 0000000..be5a403
--- /dev/null
+++ b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/73ff1e90-e8f3-45e3-a973-b4fdcb338aa0/markup.bcf	
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Markup xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="markup.xsd">
+    <Header>
+        <Files>
+            <File IsExternal="true" IfcProject="2SugUv4EX5LAhcVpDp2dUH">
+                <Filename>ARK</Filename>
+                <Date>2015-06-09T09:39:06</Date>
+                <Reference>https://bimsync.com/project/2ab3d33f07974dc0b3cfe6f0fd104ad2/revisions/111f62250c1147eda20639e3de1c894e</Reference>
+            </File>
+        </Files>
+    </Header>
+    <Topic Guid="73ff1e90-e8f3-45e3-a973-b4fdcb338aa0" ServerAssignedId="89" TopicType="Error" TopicStatus="Open">
+        <ReferenceLinks/>
+        <Title>Topics with different model visible - Architectural</Title>
+        <Labels/>
+        <CreationDate>2021-03-15T11:10:38.121+01:00</CreationDate>
+        <CreationAuthor>Architect@example.com</CreationAuthor>
+        <ModifiedDate>2021-03-15T11:10:38.345+01:00</ModifiedDate>
+        <DocumentReferences/>
+        <RelatedTopics/>
+        <Comments>
+            <Comment Guid="289af7ea-2005-4177-a922-0c22abe94361">
+                <Date>2021-03-15T11:10:38.345+01:00</Date>
+                <Author>Architect@example.com</Author>
+                <Viewpoint Guid="441baec2-8eb7-481d-9ad7-c7eb3996ab66"/>
+            </Comment>
+        </Comments>
+        <Viewpoints>
+            <ViewPoint Guid="441baec2-8eb7-481d-9ad7-c7eb3996ab66">
+                <Viewpoint>Viewpoint_441baec2-8eb7-481d-9ad7-c7eb3996ab66.bcfv</Viewpoint>
+                <Snapshot>Snapshot_441baec2-8eb7-481d-9ad7-c7eb3996ab66.png</Snapshot>
+            </ViewPoint>
+        </Viewpoints>
+    </Topic>
+</Markup>
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/ad503a8c-ac9a-42ab-9b44-ec99f19700d3/Snapshot_53ea08d5-9f7b-4b64-a5b0-57555536cc3f.png b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/ad503a8c-ac9a-42ab-9b44-ec99f19700d3/Snapshot_53ea08d5-9f7b-4b64-a5b0-57555536cc3f.png
new file mode 100644
index 0000000..0d3ef99
Binary files /dev/null and b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/ad503a8c-ac9a-42ab-9b44-ec99f19700d3/Snapshot_53ea08d5-9f7b-4b64-a5b0-57555536cc3f.png differ
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/ad503a8c-ac9a-42ab-9b44-ec99f19700d3/Viewpoint_53ea08d5-9f7b-4b64-a5b0-57555536cc3f.bcfv b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/ad503a8c-ac9a-42ab-9b44-ec99f19700d3/Viewpoint_53ea08d5-9f7b-4b64-a5b0-57555536cc3f.bcfv
new file mode 100644
index 0000000..d3ee480
--- /dev/null
+++ b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/ad503a8c-ac9a-42ab-9b44-ec99f19700d3/Viewpoint_53ea08d5-9f7b-4b64-a5b0-57555536cc3f.bcfv	
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<VisualizationInfo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" Guid="53ea08d5-9f7b-4b64-a5b0-57555536cc3f" xsi:schemaLocation="visinfo.xsd">
+    <Components>
+        <Selection/>
+        <Visibility DefaultVisibility="true">
+            <ViewSetupHints SpacesVisible="false" SpaceBoundariesVisible="false" OpeningsVisible="false"/>
+            <Exceptions/>
+        </Visibility>
+        <Coloring/>
+    </Components>
+    <PerspectiveCamera>
+        <CameraViewPoint>
+            <X>15.969774054873206</X>
+            <Y>-15.871910177190419</Y>
+            <Z>10.402650212804147</Z>
+        </CameraViewPoint>
+        <CameraDirection>
+            <X>-0.577350269189626</X>
+            <Y>0.5773502691896258</Y>
+            <Z>-0.5773502691896255</Z>
+        </CameraDirection>
+        <CameraUpVector>
+            <X>-0.40824829046386285</X>
+            <Y>0.4082482904638628</Y>
+            <Z>0.8164965809277263</Z>
+        </CameraUpVector>
+        <FieldOfView>60.0</FieldOfView>
+        <AspectRatio>1.6359794403283199</AspectRatio>
+    </PerspectiveCamera>
+    <Lines/>
+    <ClippingPlanes/>
+    <Bitmaps/>
+</VisualizationInfo>
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/ad503a8c-ac9a-42ab-9b44-ec99f19700d3/markup.bcf b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/ad503a8c-ac9a-42ab-9b44-ec99f19700d3/markup.bcf
new file mode 100644
index 0000000..1f2f9df
--- /dev/null
+++ b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/ad503a8c-ac9a-42ab-9b44-ec99f19700d3/markup.bcf	
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Markup xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="markup.xsd">
+    <Header>
+        <Files>
+            <File IsExternal="true" IfcProject="2TaLqCNHvEn9_7cUVrypdX">
+                <Filename>MEP</Filename>
+                <Date>2015-06-09T10:34:38</Date>
+                <Reference>https://bimsync.com/project/2ab3d33f07974dc0b3cfe6f0fd104ad2/revisions/754c1a440d3b4103abf1df15203feeeb</Reference>
+            </File>
+        </Files>
+    </Header>
+    <Topic Guid="ad503a8c-ac9a-42ab-9b44-ec99f19700d3" ServerAssignedId="90" TopicType="Error" TopicStatus="Open">
+        <ReferenceLinks/>
+        <Title>Topics with different model visible - MEP</Title>
+        <Labels/>
+        <CreationDate>2021-03-15T11:11:30.523+01:00</CreationDate>
+        <CreationAuthor>Architect@example.com</CreationAuthor>
+        <ModifiedDate>2021-03-15T11:11:30.523+01:00</ModifiedDate>
+        <DocumentReferences/>
+        <RelatedTopics/>
+        <Comments>
+            <Comment Guid="d398c10e-1b71-40bc-8b17-1db0caf68df2">
+                <Date>2021-03-15T11:11:30.523+01:00</Date>
+                <Author>Architect@example.com</Author>
+                <Viewpoint Guid="53ea08d5-9f7b-4b64-a5b0-57555536cc3f"/>
+            </Comment>
+        </Comments>
+        <Viewpoints>
+            <ViewPoint Guid="53ea08d5-9f7b-4b64-a5b0-57555536cc3f">
+                <Viewpoint>Viewpoint_53ea08d5-9f7b-4b64-a5b0-57555536cc3f.bcfv</Viewpoint>
+                <Snapshot>Snapshot_53ea08d5-9f7b-4b64-a5b0-57555536cc3f.png</Snapshot>
+            </ViewPoint>
+        </Viewpoints>
+    </Topic>
+</Markup>
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/bcf.version b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/bcf.version
new file mode 100644
index 0000000..fa68ecc
--- /dev/null
+++ b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/bcf.version	
@@ -0,0 +1,2 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Version xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" VersionId="3.0" xsi:schemaLocation="version.xsd"/>
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/documents.xml b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/documents.xml
new file mode 100644
index 0000000..a78f5b1
--- /dev/null
+++ b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/documents.xml	
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<DocumentInfo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="documents.xsd">
+    <Documents/>
+</DocumentInfo>
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/extensions.xml b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/extensions.xml
new file mode 100644
index 0000000..9e5ec39
--- /dev/null
+++ b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/extensions.xml	
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Extensions xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="extensions.xsd">
+    <TopicTypes>
+        <TopicType>Error</TopicType>
+        <TopicType>Warning</TopicType>
+        <TopicType>Info</TopicType>
+        <TopicType>Unknown</TopicType>
+    </TopicTypes>
+    <TopicStatuses>
+        <TopicStatus>Open</TopicStatus>
+        <TopicStatus>Closed</TopicStatus>
+    </TopicStatuses>
+    <Priorities/>
+    <TopicLabels/>
+    <Users>
+        <User>Architect@example.com</User>
+        <User>Engineer@example.com</User>
+        <User>MEPDesigner@example.com</User>
+    </Users>
+    <SnippetTypes/>
+    <Stages/>
+</Extensions>
diff --git a/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/project.bcfp b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/project.bcfp
new file mode 100644
index 0000000..5ad14a7
--- /dev/null
+++ b/Test Cases/v3.0/Visualization/Topics with different models visible/unzipped/project.bcfp	
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<ProjectInfo xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="project.xsd">
+    <Project ProjectId="16299616-fe4a-4cc3-94e5-0d9b76d48b32">
+        <Name>Topics with different model visible</Name>
+    </Project>
+</ProjectInfo>