Bar to the upper system - how to

Hello, the automatic order of bars in Dorico has moved a 5 bar line after adding slashes to a 4 < 1 system . How is it possible to move this bar up again?
Just this one. The other system include different number of bars. 3, 4 , 5 etc , so no general number of bars/system could be set.

Thanx for an advice, gogollny

Select the System Break at the start of the top system, then turn on its Wait For Next System Break property. Dorico will then keep pushing music onto the same system until it encounters another System Break.

Thanks a lot!!