Enhancement: Select All Above/Below Playhead

[Average-FNF-Modder]

What is your suggestion, and why should it be implemented?

I suggest a selection option in Edit that selects everything either above or below the current playhead, allowing you to move one whole half of a chart down or something with ease. Would be especially useful when charting erect remixes using the OG charts as skeletons when they have solo parts you'd want to make room for, but I'm sure it has other uses.