Get ​/catalogue​/{sessionId}​/datasetparameter for more than one investigation Id

Would it be possible to give a list of investigationIds for the endpoint ​/catalogue​/{sessionId}​/datasetparameter instead of just one investigationId, just like for ​/catalogue​/{sessionId}​/dataset ? It would be useful for the Human Organ Atlas and the Paleo portal where each project will have several investigations linked to it.

Also, would it be possible to make this available for /datasetparameter/values/ ?