The creator used to be at start up but they wanted to make it more in-depth so moved it to the workshop. There will no doubt endless options on release date. Did you join the beta late? There is a journal post about it but i am too lazy to find and link it sorry.
Some people have suggested a simplified editor to be at start up aswell for quick faction building, but it remains to be seen if the devs will put this in or not. My guess is that if its not their already they will probabley add it somewhere down the line if there is a demand for it.