If you want to keep them separate, you can copy the file and merge the subtools in that other file.
In the subtool palette, you have an option to merge, use that to combine the different subtools.
There is also a plugin that does this for you, if you look at the top where it says "Zplugin"
Subtool Master > Merge > Select how you want to merge the parts and click OK.
Subtool Master's merge option let's you make a new subtool with all the parts merged, without deleting the other subtools. It makes a copy, or you can have it delete the old subtools and just keep the one merged.
Here's an update on my fighting system, I haven't posted in a while. This is for my version of MK, not what is coded for MK1 by Interloko obviously. These are two separate projects, using some of the same artwork.
The old sprites are temporary, I'm working out the code mainly for the combat system.
Now that I got a bit of work done on this, back to Cage.