Hi, for the first question :
-
Be aware that approve for removals are broken on Windows 10 computers. Microsoft is aware of that. Expect a bug fix.
- MSP files have these own applicable rules. So they should apply only on computers where they are needed. So you can approve them on all computers
- To install a software on computer where the soft is not installed, simply set a rule to detect where the soft is not installed and approve for installation on that computers