Similar to this idea, but for editing: use the shift key to restrain movement of features or feature vertices to perpendicular, parallel, 45, and possibly other angles. Right now, when editing vertices, I have no way to move them in a straight line down. This is a standard feature in virtually every other application that involves graphical elements.
![rburkebsrc_0-1666891121749.png rburkebsrc_0-1666891121749.png](https://community.esri.com/t5/image/serverpage/image-id/54626i7E0CCB041B95E01A/image-size/medium?v=v2&px=400)
A 'smart guide' for continuing the line might also be a solution. I poked around down here but couldn't find anything that did what I wanted.
![rburkebsrc_1-1666891151486.png rburkebsrc_1-1666891151486.png](https://community.esri.com/t5/image/serverpage/image-id/54627i5E4D6C0F17DF60D6/image-size/medium?v=v2&px=400)