Schedule C to ScheduleE

2018 I bought a commercial building for my business.  I wrote down the depreciation and the expenses for it on schedule C.  Then I got the bright idea to help me with expenses to rent the back out and the side of the building out.  I would like to switch to schedule E.  Do I just move the rental income to a schedule E?  Do I need to move over the depreciation to the schedule E?  If so how would I do that?  My business uses a major portion of the building and I've been paying property taxes and the building payment throught my business.  Please advise.