diff --git a/autoload/phpactor.vim b/autoload/phpactor.vim
index 152dd1e522..f72f7349d9 100644
--- a/autoload/phpactor.vim
+++ b/autoload/phpactor.vim
@@ -314,23 +314,22 @@ endfunction
 """""""""""""""""""""""
 " Utility functions
 """""""""""""""""""""""
+function! s:isOpenInCurrentWindow(filePath)
+  return expand('%:p') == a:filePath
+endfunction
 
 function! phpactor#_switchToBufferOrEdit(filePath)
-    if expand('%:p') == a:filePath
-        " filePath is currently open
+    if s:isOpenInCurrentWindow(a:filePath)
         return v:false
     endif
 
     let bufferNumber = bufnr(a:filePath . '$')
 
-    if (bufferNumber == -1)
-        exec ":edit " . a:filePath
-        return v:true
-    endif
-
-    exec ":buffer " . bufferNumber
+    let command = (bufferNumber == -1)
+          \ ? ":edit " . a:filePath
+          \ : ":buffer " . bufferNumber
 
-    return v:true
+    exec command
 endfunction
 
 function! phpactor#_offset()
@@ -434,9 +433,9 @@ function! phpactor#rpc(action, arguments)
     let result = system(cmd, json_encode(request))
 
     if (v:shell_error == 0)
-        try 
+        try
             let response = json_decode(result)
-        catch 
+        catch
             throw "Could not parse response from Phpactor: " . v:exception
         endtry
 
@@ -510,27 +509,17 @@ function! phpactor#_rpc_dispatch(actionName, parameters)
     if a:actionName == "open_file"
         let changedFileOrWindow = v:true
 
-        if a:parameters['target'] == 'focused_window'
-            let changedFileOrWindow =  phpactor#_switchToBufferOrEdit(a:parameters['path'])
-
-            if a:parameters['force_reload'] == v:true
-                exec "e!"
-            endif
-        endif
-
-        if a:parameters['target'] == 'vsplit'
-            exec ":vsplit " . a:parameters['path']
-        endif
-
-        if a:parameters['target'] == 'hsplit'
-            exec ":split " . a:parameters['path']
-        endif
+        call s:openFileInSelectedTarget(
+              \ a:parameters["path"],
+              \ a:parameters["target"],
+              \ get(a:parameters, "use_open_window", g:phpactorUseOpenWindows),
+              \ a:parameters["force_reload"]
+              \ )
 
-        if a:parameters['target'] == 'new_tab'
-            exec ":tabnew " . a:parameters['path']
+        if a:parameters["target"] == 'focused_window'
+            let changedFileOrWindow = !s:isOpenInCurrentWindow(a:parameters["path"])
         endif
 
-
         if (a:parameters['offset'])
             let keepjumps = changedFileOrWindow ? 'keepjumps' : ''
 
@@ -653,6 +642,41 @@ function! phpactor#_rpc_dispatch(actionName, parameters)
     throw "Do not know how to handle action '" . a:actionName . "'"
 endfunction
 
+function! s:openFileInSelectedTarget(filePath, target, useOpenWindow, forceReload)
+    let bufferNumber = bufnr(a:filePath . "$")
+    if v:true == a:useOpenWindow && -1 != bufferNumber
+        let firstWindowId = get(win_findbuf(bufferNumber), 0, v:null)
+
+        if v:null != firstWindowId
+            call win_gotoid(firstWindowId)
+            return
+        endif
+    endif
+
+    if a:target == 'focused_window'
+        call phpactor#_switchToBufferOrEdit(a:filePath)
+        if v:true == a:forceReload
+          exec "e!"
+        endif
+        return
+    endif
+
+    if a:target == 'vsplit'
+        exec ":vsplit " . a:filePath
+        return
+    endif
+
+    if a:target == 'hsplit'
+        exec ":split " . a:filePath
+        return
+    endif
+
+    if a:target == 'new_tab'
+        exec ":tabnew " . a:filePath
+        return
+    endif
+endfunction
+
 function! phpactor#_rpc_dispatch_input_handler(Next, parameters, parameterName, result)
     let a:parameters[a:parameterName] = a:result
 
diff --git a/doc/phpactor.txt b/doc/phpactor.txt
index 89e80dbd69..31c1bb5478 100644
--- a/doc/phpactor.txt
+++ b/doc/phpactor.txt
@@ -44,6 +44,11 @@ use the VIM quick-fix list.
 Function to use when presenting a user with a choice of options. The default
 is to use the VIM inputlist.
 
+                                                    *g:phpactorUseOpenWindows*
+When jump to the line of a file displayed in any existing window reuse this
+window to avoid have more than one view of the same file. The default is
+false.
+
 ==============================================================================
 COMPLETION                                               *phpactor-completion*
 
diff --git a/ftplugin/php.vim b/ftplugin/php.vim
index 24397340f5..7f7f8ba0a0 100644
--- a/ftplugin/php.vim
+++ b/ftplugin/php.vim
@@ -9,43 +9,37 @@ let g:phpactorInitialCwd = getcwd()
 let g:phpactorCompleteLabelTruncateLength=50
 let g:_phpactorCompletionMeta = {}
 
-if !exists('g:phpactorPhpBin')
-    ""
-    " Path to the PHP binary used by Phpactor
-    let g:phpactorPhpBin = 'php'
-endif
-
-if !exists('g:phpactorBranch')
-    ""
-    " The Phpactor branch to use when calling @command(PhpactorUpdate)
-    let g:phpactorBranch = 'master'
-endif
-
-if !exists('g:phpactorOmniAutoClassImport')
-    ""
-    " Automatically import classes when using VIM native omni-completion
-    let g:phpactorOmniAutoClassImport = v:true
-endif
-
-if !exists('g:phpactorCompletionIgnoreCase')
-    ""
-    " Ignore case when suggestion completion results
-    let g:phpactorCompletionIgnoreCase = 1
-endif
-
-if !exists('g:phpactorQuickfixStrategy')
-    ""
-    " Function to use when populating a list of code references. The default
-    " is to use the VIM quick-fix list.
-    let g:phpactorQuickfixStrategy = 'phpactor#quickfix#vim'
-endif
-
-if !exists('g:phpactorInputListStrategy')
-    ""
-    " Function to use when presenting a user with a choice of options. The default
-    " is to use the VIM inputlist.
-    let g:phpactorInputListStrategy = 'phpactor#input#list#inputlist'
-endif
+""
+" Path to the PHP binary used by Phpactor
+let g:phpactorPhpBin = get(g:, 'phpactorPhpBin', 'php')
+
+""
+" The Phpactor branch to use when calling @command(PhpactorUpdate)
+let g:phpactorBranch = get(g:, 'phpactorBranch', 'master')
+
+""
+" Automatically import classes when using VIM native omni-completion
+let g:phpactorOmniAutoClassImport = get(g:, 'phpactorOmniAutoClassImport', v:true)
+
+""
+" Ignore case when suggestion completion results
+let g:phpactorCompletionIgnoreCase = get(g:, 'phpactorCompletionIgnoreCase', 1)
+
+""
+" Function to use when populating a list of code references. The default
+" is to use the VIM quick-fix list.
+let g:phpactorQuickfixStrategy = get(g:, 'phpactorQuickfixStrategy', 'phpactor#quickfix#vim')
+
+""
+" Function to use when presenting a user with a choice of options. The default
+" is to use the VIM inputlist.
+let g:phpactorInputListStrategy = get(g:, 'phpactorInputListStrategy', 'phpactor#input#list#inputlist')
+
+""
+" When jump to the line of a file displayed in any existing window
+" reuse this window to avoid have more than one view of the same file.
+" The default is false.
+let g:phpactorUseOpenWindows = get(g:, 'phpactorUseOpenWindows', v:false)
 
 if g:phpactorOmniAutoClassImport == v:true
     autocmd CompleteDone *.php call phpactor#_completeImportClass(v:completed_item)
@@ -53,4 +47,3 @@ endif
 
 
 " vim: et ts=4 sw=4 fdm=marker
-