Comment 1 for bug 1401593

I'm also struggling with space bar panning getting in the way both when toggling back to the selector tool (per the original report), but also when trying to stamp copies of objects.

An alternative to exposing a preference option might be to tweak the code that triggers panning so that the space bar has to be held down beyond a particular threshold (e.g. for at least 100ms) before panning commences. This would reduce the likelihood of it interfering with toggling and stamping, both of which tend to be done with a quick press and release of the bar.