well I think that this is what you are looking for.

This is just a basic example.....

mob
verb
Watch(M as mob in world)
set category = ""//put tab name here in ""
client.eye = M
usr<< "Your Now watching[M]"
client.perspective = 255

This is just a basic verb. Pay no attention to the rest of the verb only this bit:
set category = ""//put tab name here in ""

This is the bit of the code you will want. The rest is just to show you where to put it and so on.

In the "" put the tab name that you want it to appear in.
For example:
set category = "Jutsus"

Remember if you want a verb to come up in the tab Commands you do not need to add this as Commands is the default tab for verbs to come up in.

I hope that this is what you needed.