Oz - ok, actually a few questions in there:
Supports traditional caps shift by holding either the left or right shift key along with the chosen letter.
Also supports iPhone-style caps shift by tapping either shift key before typing the next letter. This tap shift is what we mean with the term “forward shift”.
Supports caps lock by double-tapping either shift key.
When you want to capitalize say, QAZ, with same hand as the letter, you use the tap shift.
Typists find it’s actually faster and easier than the acrobatics to hold two fingers down together. TextBlade is smart like iPhone to auto release after the letter is struck, obviating a separate release step.
Foward delete - this form of backspace does forward delete. (very useful in editing). Hold the space bar down for the green layer and hit backspace key to get it. It saves a lot of cursoring.