One probable solution could be,
When the user moves from other sheets to Sheet 1, you can set a trigger and say that when user leaves those sheets, then clear the selection(only if he dosen't need) those selections for the current table box.
But there will be a problem to this approach, that all the selections will be cleared and he/she will have to reselect.
If one can compromise then you can use triggers.
Right click on the sheet-> Properties->Triggers-> Add actions(On leave sheet)-> Add-> Selection-> Clear other Fields
Hope this helps,