Improve the Add/Remove Interface

Currently, when you add/remove cards to a deck it is

• Add One
• Add More (opens a number overlay)
• Remove One
• Remove More (opens a number overlay. only shows if multiple are in the list)

The Number Overlay
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I don’t think this UX is great.

Why not
Add One
Remove one
Adjust # of copies (opens add/remove overlay)

Add or Removal Overlay
[Remove All] [Remove 1] [Current Number Text Field, starts at 0] [Add 1] [3/Full Playset]
Remove All: Sets the number to the negative [# of copies].
Remove 1: Decrements the number in the text field by 1.
Add 1: Increments the number in the field by 1.
Playset: Sets the number to the typical max allowable in the format (so 60c would set to 4, singleton formats wouldn’t display this button)
Then a Save button below.

You can still click and modify the number, but now it doesn’t require using a keyboard number entry task. You can stick with mouse.
I think it’ll also be slightly nicer on mobile.