You can do it manually, or an easier way is to use the plugin JW New Piece. This will:

Adjust the system/measure layout both for the score and all parts

• Indent system at the new piece start (based on the FIRST staff system in each part or score) 
• Break a new system (in the measure attributes)
• Split measure number regions at the start of the new piece (and start at 1 again)
• Break multi-measure rests
• Break word extensions at new piece
• Hide cautionary clef/key/time sig changes
• Show full names at the start of new piece
• Set final barline style for the previous piece
• Push system layouts downwards at system splits
• Show time and key sigs at the start of the new piece
• Break multimeasure rests, if necessary
•  

You can get it at finaletips.nu

Make sure you download the correct version for your platform.

Thank you very much! It works!