Wanted to know if I could either A) Find the existing feature and how to use it or get it added to the feature wishlist
Feature: In Photoshop-like applications, when you hold down CTRL before doing a left-click draw action (such as pencil or paintbrush), allow the draw action to only occur horizontally or vertically (hard to explain). Say I have the pencil tool, which is a 1px brush size. I hold CTRL, then left click and slide the mouse to the right (horizontally). The pencil is constrained to only draw 1px horizontally only, if I change the mouse's Y as I increase or decrease its X, the pencil still draws on the X I started with (is locked in).