id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc,workpackage 473,Multiplicity models do not appear in drop-down in Custom Model > Sum|Multi,smk78,,"Reported by Saeed Mohan (saeed.mohan@ipleiria.pt): I was attempting to add in my own custom model to Sasview, which is based on the !UnifiedPowerRg model. I thought the easiest thing to do would be to use the Sum Multi|(p1, p2) function under Fitting > Edit Custom Model, however I am not able to find this model in the options list. Checked by SMK. He is correct. What is more, the same bug exists in v3.0.0 and v2.2.1!!! PDB checked and it appears that no multiplicity models appear in the dropdown (eg. RPA10, onion, etc). This is probably working as designed since I suspect the interface was not obvious for a multiplicity model? Interestingly there is also a very strange behavior that the shape independent -> Absolute_Power_Law seems to have been renamed in this dropdown to !PowerLawAbsModel ... perhaps due to the space in the name? ",defect,new,major,SasView 5.1.0,SasView,,,,SasModels Infrastructure