Spectre: is it possible to specify initial conditions for DSPF blocks?

Hi! I am in the need of simulating extracted layouts in DSPF format. They are smaller and simulate faster than other alternatives (e.g. av_extracted, calibreview). However, I can't figure out how set initial conditions for nets within the blocks described by the DSPF netlists, an without those the whole simulation is ruined (we have some servo loops that need to be initialized close to their expected solution). Is there anyway this can be done?

Thanks and regards,

Jorge.