Turntable position check within routes

[Pierangelo]

Hi,

I have installed a Littfinsky TT-DEC decoder with a Fleishmann turntable following the attached schema, all the stuff is driven by Windigipet 2012.2 and Intellibox.
The blue cable reports, as feedback contact, the information "occupied" if the turntable bridge is line-up to any position and "free" information while the bridge is turning to reach the selected postion.
I haven't find a method, in Windigipet, to enable a route toward the turntable bridge if and only if the bridge is in line with the starting track.
Of course i can set a waiting time (profile) for start loco equal to the time needed for the turntable bridge to make a complete 180° turn, but it looks a poor solution.
Anyone has experience on that?

Thanks in advance for your help.