1.is this module compatible with all prestashop theme?
most themes should be fine as long as it is compatible with your prestashop version.
but we cannot guarantee all themes will fit perfectly.
2.support indonesia languange?
yes, but you will have to translate by your own from back office - Localization - Translation tab
3.how about user management?i mean 1 shop can have a 5 admin.
Do you mean main store? - you can have as many admin users as you want.
For seller virtual shop (you need accessory module - Agile Multiple Shop), one seller can have only one seller employee account.