1) I thought it was just me that found that annoying
, yes I will make an option for that.
2) I can't commit to this right now, I need to test it. There's significant processor overhead in regenerating the data, and for large images it may be a problem on low power tablets etc. Perhaps having a check box to make it refresh in real time would work, I know that's pretty common in Photoshop and other programs.
Thanks for the suggestions!