a geocities ftp question

[chromewaves]

i dont know if this was the right place to post this- but i looked and looked and could find no info on what i need to know- so im taking a shot in the dark here.

i have a geocities plus account. i know how to use the ftp function- but heres my question:

can i set up an ftp sub account, for instance if i wanted to let someone upload into a certain folder of my choosing, could i somehow make a sub account for them?

i long ago read something on this topic, but now i cant find it for anything- i hope someone can point me in the right direction