PM work package without hierarchy

Problem:
There is no way to group concurrent work that needs to happen at the same time but the activities remain independent of each other, without creating a PM hierarchy (which rolls up costs when it is not wanted and creates a parent work order) or using a route which also creates an additional work order that is not required and clutters up the system.

Proposal:
Create a method of being able to manage a package of PMs that behave the same way a hierarchy, where the earliest due PM calls all others, but without creating a parent work order, or tying the resulting work orders together. This could be via the option to suppress a parent work order, but reference the calling PM, or have a maintenance plan option where you could list all the PMs you want to group together, the earliest due PM checks if it is on a maintenance plan at work order creation, and then calls all other PMs that are part of the same plan.

It could also be that on the PM record you can list other PMs that must be called at the same time as the current PM. This is slightly different functionality but would also meet most of the occasions where PMs could be linked. The reason not to use a nested Job plan here is that the PM for the asset would not be updated by completing the resulting work order from the nested job plan.

Result:
Work that needs to occur at the same time, but is unrelated in any other way can be linked together .