1D/Metabolomics profiling by reference

Profile by reference (PBR) (as I understand is in alpha, so are probably known)

When working with multiple different spectra system can run slow/crash
limit to around 10 active simulations before crashes. Compounds with more peaks cause more issues (I have primarily been using spin system simulations) 
Closing the PBR module causes all simulations to be lost, re-opening PBR triggers a new instance of PBR with new simulation spectra, would be ideal if can save the PBR external to project saving
Saving project with PBR sometimes retains the simulations, other times file paths can be lost to the simulated spectra and cause issues usually leading to restart the PBR.
For spin system simulations a way to select all peaks at once to drag to move would be nice to move all peaks at once a bit easier.

When phasing to the correct spectra shape sometimes after clicking “apply” the spectra phase can change drastically from the preview, usually requiring a software restart or re-load spectra. no obvious cause.