[Question] How do I start my own Organization or Private Play of my RP?

erm...

Hi.. i wonder if how could start my Own Rp Organization or Private play of my own RP

cuz.. I don't have any Triggers or anything that i can open any RP maps
usually my Top Priority is to borrow a Map and modify it.. and private play...
or i should ask the Owner of the Map if i could upload it to net..

my Reason is...

I want to add some models that are not included like Mecha Animes :P
arrange few stuffs or create an Empire Stuffs

oh please.. maybe if someone could share me some tools or any possibilities to edit a map...
ill ask you permission if i could upload it to net or
make something that you are the owner or some signatures that you own the map!!
Kindly Share it :)