When you say weapons at certain spots and the server restarts will they automatically spawn there at that spot cuz I am making a mini game server and 

When I bring the menu up it kind of jitters a little bit is that normal

Hi,

Yes, once you've set up some profile they will automatically spawn thereafter, as long as they're enabled.

Yes, that's normal - The UI has to constantly reload to be up to date so you may see the occasional flicker or whatever.