Dynamically Change Data Source

Hi - from what I read this only applies to Power BI Desktop.  I am looking for a Power BI Service which will allow a dropdown on the report - not on the toolbar (as that will be locked) down.  I am looking to simply ease of use with the the application without having to interface with any portions of PowerBi Toolbar commands (such as edit parameters).

Agin thank you for your suggestion.  However they are pointing me in the direction that PowerBi is not set up to handle having a single front-end that will deal with multi databases each with the same structure - and it may be time to look for another solution.  I am hoping this was not the case but based on my research, talking to a number of PowerBi experts and going on this forum, I don't see a solution that is viable for our situation.