Hspice -How to sweep a few variables and optimize at the same time?

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Hi,
I'm learning Hspice. I want to do generate the optimized result for the circuit while sweep on a few variables(more than 3). Is there anyway that we can do this at the same time?

Code: 
.tran xxxx sweep data=datax
.tran xxxx sweep Optimize = Opt1
 

The parameter OPT presupposes the existence of previously calculated values, so that honestly I can't see how to dynamically set values to insert them in simulation as initial conditions without those being already known. In other words, the only thing that seems feasible is to store these bias points once at a certain number of simulations and then replace them as fixed parameters with the .IC command.
 

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