Why can't we just have combo chains?

[Rongway]

It should be one button because there is no reason to use the skills otherwise, there are two abilities i can't use at all if not combo chained, so they just eat up two slots for nothing.(i literally can't use the skills, so there is no window for error!)

You literally can use combo buttons out of order, but it's a bad idea. Having pressable buttons that are "wrong" is a valid video game concept.

It's the buttons that you literally literally can't use out of order that should be consolidated.

It's fine for GNB 1-2-3 to be 1-2-3. But its intercombo 1(1b)-2(2b)-3(3b) should just be 1(4)-2(4)-3(4) because the intercombo literally can't be used out of order.