How to increase gap between staff lines?

[Mark_Johnson]

See this thread from July for workarounds and discussion:

5 lines staff to 3 lines staff

Hello, I’m looking for solution for my problem. I want to convert 5 staff line to 3 staff line. Only solution i’ve found so far is changing instrument and give other 3 staff line. But what i want is the “outer” lines to be visible, not the inner. I post pictures of what i managed to get and what i want to achieve. Is there a way to space those line and not destroy other staff setup? [1_2]