Inspired by this thread, I have updated the Replace shortcut to allow you to choose "Select a VI..." (or "Select a Control... on the panel) to browse to a VI (or control, or class) on disk to replace the selected object(s). In LabVIEW 2014 and earlier, choosing Select a VI/Control in Quick Drop, then pressing Ctrl-P, was a no-op. For LabVIEW 2015, I am planning shipping an updated shortcut that allows this operation to proceed as you would expect.
If you're using LabVIEW 2014, please follow these steps to try out the prototype:
1. Make a backup of the following VI: LabVIEW 2014\resource\dialog\QuickDrop\plugins\Replace.vi
2. Place the attached VI in that location in its place.
Try using this shortcut to replace objects as you normally would, but also use it to replace objects with files that you browse to on disk as a result of typing "Select a VI..." or "Select a Control..." in Quick Drop (or 'sav' and 'sac', if you have object shortcuts configured like I do). Please let me know if you have any issues. This shortcut should be safe to use throughout your LabVIEW 2014 development.