There are only 3 categories of hand skills in the striking art (not include kicking). There are:
1. Block and strike - You block with one arm and punch back with another arm. The block can be any kind of blocks. The strike can be any kind of strikes. If you style has 6 different kind of blocks and 5 different kind of punches, you will have maximum 6 x 5 = 30 different kind of "block and strike".
2. Switch hands - You block with one arm, use the other arm to take over, and still strike with the same arm. Since this will require 2 blocks, you may have maximum 6 x 6 x 5 - 180 different "switch hands".
3. Dodge and strike - You dodge the punch without blocking it and punch back. If you have 4 different way to dodges (left, right, back, under) then you will have maximum 5 x 5 = 25 different way to "dodge and strike".
If you can just categoried your hand striking into these 3 categories, it will be very easy to manage no matter what style that you may train.
Gee, I have to disagree with that. We have blocks that are also strikes, for example. Blocks that are also traps. Blocks that become strikes. And so on. I'm just a rookie, but it seems to me that there are lots more movements than just those.