Hi,
For three branches, you may try as if 'a' then pass to branch1, have system 1 in branch 1otherwise branch 2. In branch 2 have another switch such that if 'b' then system 2 otherwise system 3.
Hi,
For three branches, you may try as if 'a' then pass to branch1, have system 1 in branch 1otherwise branch 2. In branch 2 have another switch such that if 'b' then system 2 otherwise system 3.