diff --git a/mcstas-comps/union/Union_abs_logger_nD.comp b/mcstas-comps/union/Union_abs_logger_nD.comp
index acdec0e39..fd3fbf5e8 100644
--- a/mcstas-comps/union/Union_abs_logger_nD.comp
+++ b/mcstas-comps/union/Union_abs_logger_nD.comp
@@ -80,12 +80,26 @@
 * bins: [1]              Number of bins to force for all variables. Use 'bins' keyword in 'options' for heterogeneous bins
 * min: [u]               Minimum range value to force for all variables. Use 'min' or 'limits' keyword in 'options' for other limits
 * max: [u]               Maximum range value to force for all variables. Use 'max' or 'limits' keyword in 'options' for other limits
+* user0: [str]           Variable name of USERVAR to be monitored by user0.
 * user1: [str]           Variable name of USERVAR to be monitored by user1.
 * user2: [str]           Variable name of USERVAR to be monitored by user2.
 * user3: [str]           Variable name of USERVAR to be monitored by user3.
+* user4: [str]           Variable name of USERVAR to be monitored by user4.
+* user5: [str]           Variable name of USERVAR to be monitored by user5.
+* user6: [str]           Variable name of USERVAR to be monitored by user6.
+* user7: [str]           Variable name of USERVAR to be monitored by user7.
+* user8: [str]           Variable name of USERVAR to be monitored by user8.
+* user9: [str]           Variable name of USERVAR to be monitored by user9.
+* username0: [str]       Name assigned to User0
 * username1: [str]       Name assigned to User1
 * username2: [str]       Name assigned to User2
 * username3: [str]       Name assigned to User3
+* username4: [str]       Name assigned to User4
+* username5: [str]       Name assigned to User5
+* username6: [str]       Name assigned to User6
+* username7: [str]       Name assigned to User7
+* username8: [str]       Name assigned to User8
+* username9: [str]       Name assigned to User9
 * restore_neutron: [0|1] Not functional for Union version
 * geometry: [str]        Name of an OFF file to specify a complex geometry detector
 * nowritefile: [1]       Not functional for Union version
@@ -105,12 +119,14 @@ DEFINE COMPONENT Union_abs_logger_nD
 DEFINITION PARAMETERS ()
 SETTING PARAMETERS(string target_geometry="NULL",
                    order_total=-1, order_volume=-1, logger_conditional_extend_index=-1, string init="init",
-				   string user1="", string user2="", string user3="",
+				   string user0="",string user1="", string user2="", string user3="", string user4="",
+		                   string user5="",string user6="", string user7="", string user8="", string user9="",
 				   xwidth=0, yheight=0, zdepth=0,
 				   xmin=0, xmax=0, ymin=0, ymax=0, zmin=0, zmax=0,
 				   int bins=0, min=-1e40, max=1e40, int restore_neutron=0, radius=0,
 				   string options="NULL", string filename="NULL",string geometry="NULL", int nowritefile=0, int nexus_bins=0,
-				   string username1="NULL", string username2="NULL", string username3="NULL")
+				   string username0="NULL", string username1="NULL", string username2="NULL", string username3="NULL", string username4="NULL",
+				   string username5="NULL", string username6="NULL", string username7="NULL", string username8="NULL", string username9="NULL")
 OUTPUT PARAMETERS ()
 
 /* Neutron parameters: (x,y,z,vx,vy,vz,t,sx,sy,sz,p) */