Another keymap goodie for test fun: Tweak events allow to be limited to a direction, like North, South-West, etc. Tested with View3D keymap for border, circle & lasso. Issue to look at still is whether a border should start immediate, or first draw a cross... this can be an operator property of course. Note that tweak code can be extended to corner-gestures too (so you can do a north+east, north+west, and so on... nice for later). Time to get keymap saving work! :) (Fixed bug in Mesh edit circle select, missing notifier)