Geany: Open a new instance per workspace when opening a file in that workspace

I'm using Mate 1.2.0 in Linux Mint 13. The two text editors i use are Gedit and Geany (v0.25): i use Geany for all my coding as i prefer the syntax highlighting and some other interface features. One thing that bugs me though is this behaviour: - open a file in Geany in workspace 1 - go to workspace 2 - double click a file to open it (in Geany) - the desktop switches to workspace 1 again and opens the file in Geany. When i do this in Gedit, it opens a new instance of Gedit in that workspace, which suits my style of working perfectly, where i have different projects open in each workspace. I **can** start another instance of Geany from the programs menu, and move one into the other workspace, but it doesn't change the behaviour: I then see this: - open a file in Geany in workspace 1 - go to workspace 2 - start a new instance of Geany from the program menu (so i now have one per workspace) - double click a file to open it (in Geany) - the desktop switches to workspace 1 again and opens the file in the first instance of Geany. So it's like it always opens a file in the "primary" Geany, and switches to whatever workspace that happens to be in. Is there a way i can change this behaviour? I'd like it to be like so: - On opening a file: is there a Geany running in this workspace? - yes: open the file in that Geany - no: open a new Geany in this workspace and open the file in that. I can't see an option relating to this in the settings. Any advice appreciated! thanks