Hi
The greenup and distribute loss actions work in a similar way to auto-greenup. In your example I think it best if you do a “manual” lay for these, with conditions related to your opening back bet.
e.g. lay if trigger back number of runs is greater than 0
plus your other conditions
you can find formulas for manual greening or distribute loss here:
http://community.welldonesoft.com/triggered-betting-10/formulas/using this method, your separate lay trigger should remain unaffected by the back / lay-to-green / lay-to-red sequence.
another idea is to set a user variable as a flag e.g. 0/1 in your back trigger and add a condition to your greenup and stoploss to check the flag status before executing