Save state from transient and use it for initial AC conditions

Hi,

I have a large circuit with long startup time. I am running a transient simulation until the system has reached steady state (LDOs are up and running etc), then i start an AC simulation at a predefined time using the ?actimes and ?acnames parameters.  

The problem is that this is not very efficient, since the transient takes a long time, and the AC is rather quick. If i could run the transient once, save the state and then be able to run the AC from there, i would save a lot of time. 

How can i save the state from the transient, read the state and use it as a start state for my AC simulation? I am using spectre version -17.1.0.307.isr6.