Can you have more than one level of numbering on the same line i.e.
A. Level 1
A1 Keeping level 1 at A but adding level 2
A2 Keeping level 1 at A but incrementing level 2
1.1 Level 3
1.1.1 Level 4
1.2 Level 3
B. Back to level 1
B1 Keeping level 1 at B but adding level 2
B3 Keeping level 1 at B but incrementing level 2
1.1 etc

Thanks in advance

Jean Pereira