Added handling more special workspaces

src/helpers/Monitor.hpp

@@ -46,8 +46,8 @@ public:
     CMonitor*   pMirrorOf = nullptr;
     std::vector<CMonitor*> mirrors;
 
-    // for the special workspace
-    bool        specialWorkspaceOpen = false;
+    // for the special workspace. 0 means not open.
+    int         specialWorkspaceID = 0;
 
     // Double-linked list because we need to have constant mem addresses for signals
     // We have to store pointers and use raw new/delete because they might be moved between them