Sorry buddy, it seems only development can change this.
Normally macros or apps can be created for steps that can be performed manually to save time involved in repetitive steps and avoid errors. This seems to be a built-in behavior that cannot be changed. I tried with multi-selecting and changing at once, including using the Shift and Ctrl keys, but it appears selection and only one list can be manipulated at a time.
There could be a completely different workaround - like grouping all required components to mirror into one body and mirroring them, etc.
I suggest using Find & Replace it works well!
I was confused by Your info about "Mirror" since when mirroring there is no question for adjustment.
For this situation there is only one method I have found and this is via the Find - Replace option of the RMB