I cant find or figure out how to show a lvl1 number in a lvl 2 paragraphstyle while i dont want the lvl 1 paragraph style to show a number.

Dear comunity,

I cant find or figure out how to show a lvl1 number in a lvl 2 paragraphstyle while i dont want the lvl 1 paragraph style to show a number.

Header

1.1 SubHead

1.2 SubHead

Header

2.1 SubHead

2.2 SubHead

etc

So far i made a character style for letting the numbers of the header be nearly invisible but i really hope there is a more simple way.

Hope anyone can answer my question.