Key change at the end of line

Hello everyone!
A useful function is surely to be able to change armor during the piece, that is the key. In a piano score when the change is made alterations in mid-line music there is no problem. Conversely, when this happens at the end MuseScore staff does not anticipate changes in the top row (bar above) and have alterations usually at the beginning of the line below.
It happens so that the reader remains displaced not noticing the key change.
This process is similar also with regard to the key: the only difference is that in this case, the program also correctly shows the change over.
Is there a way then to add the changes "warning" even in the bar above the top line?
If not possible, how can you avoid this.
Edward.

Ps.: I use MuseScore on 0.95 Ubuntu 9.04.