I wanted more control over the Poser 5 renderer so I've written a script that renders every tenth frame of a scene and then goes back to the start and renders all the missing frames. If I have to abort the process and start again, my script checks to see the rendered file exists before rendering and skips it if it exists. Trouble is, the only way I can stop the process is using cntl-alt-delete and killing Poser from the task menu. What I'd like to do is have a button which is available to click while my main script is running. When I click it, it can set a flag of some sort which my main script can check between renders. If it is set, then the main script can quit processing till another day. Is this possible within the poser-python environment?