Run OptiStruct with licenses available

Hello,

is there a way to launch an analysis with optistruct that uses just the available licenses?

For example, let's say I have 51k licenses and I have HyperMesh opened (21k licenses used). Then I launch a fem file with the compute console with 4 cores (-nt 4 as options); this consumes 30k licenses and everything is fine.

It may happen that another user setup the launching of the analysis 2 hours later with 20 cores, so it will need all the licenses available. The analysis will fail if  another user has HyperMesh opened, for example, but the analysis may run with 4 cores. 

I know that there is a function called "HyperWorks Units" that let the solver run the analysis with just the license available. Can you help me on this topic?

Thank you in advance