I am getting on with my MarvelousSynchroniser. I have come to the point that the script puts up a stay-on-top dialog with a button that does trigger the export to (.obj format) and a text box showing the text 'synchronised' after succesful completion. The dialog stays on until dismissed.
I now want to make the text box show whether the figure pose is still as exported, so change to 'click to update' if a parameter of the selected figure is changed.

Is there an example how to do this? : I recall having seen some 'onParameterChange()' somewhere but I cannot find it anymore now.