Holding movement threshold

[HakanL]

I believe I have asked this before but I can't find the question/answer. Is there a way to change the tolerance/threshold for holding a button to a larger value than what it's current? On my small touchscreen (Skia, RPi) I have a button close to the edge of the screen and I want to detect Holding on that. The issue is that because of the physical placement it seems to be very easy to move your fingers a few pixels, so a lot of times I don't get the holding event. Is there a setting to make the holding less sensitive? For my purpose I don't really care about cancelling/aborting a hold, if the user has touched the screen then they want to execute.