Building changing for teacher

[Info]

Hi there, I think this is asked several time, I did search but I don't want to use a custom version.
Year 1,2,3 is at building A, year 4 is at building B and year 5 is at building C.
Is there anyway to add constraint saying that class year 1,2,3 should not start after having class of year 4 or 5? So I can add a gap for teacher to reach another building. Thank you.

[Liviu Lalescu]

Hello,

I think you can try:

1) Use buildings and building changes constraints;

or

2) Use the constraint(s) teacher(s) min gaps between ordered pair of activity tags.

[Info]

Hello,

I think you can try:

1) Use buildings and building changes constraints;

or

2) Use the constraint(s) teacher(s) min gaps between ordered pair of activity tags.

Thank you very much sir
I love your software and it is so great!

[Liviu Lalescu]

Thank you!