Increase 60 minute, no activity model unload

A description of the enhancement required:
As an Workspace Admin I want a solution that prevents Anaplan to go out of in memory after 60 min because I need to prevent my end users to be confronted with a long load time.

An example of the enhancement:
Could be an option to set time slots when a model should always be kept in memory or increase the no activity time.

A story for why the enhancement is required (specifically, how would it aid the business process):
The load of models into memory is needed after 60 min a model is not used. As this can happen more than once per day, the users are in more occasions confronted with the longer load time. The result is that the end user experience is negatively impacted. Currently we already experienced model load times of over 2 minutes.