I’m working on a plugin that deals with this by letting you connect a running packaged build back to the Editor.
Once connected, you can:
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Live-view and modify properties (Blueprint variables included)
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Call functions remotely
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See logs from changes in the Editor panel
It basically skips the repackage loop for quick tweaks and checks. Might be useful for your workflow.
Below are the YouTube tutorial video link and FAB link, hope this helps! 
Runtime Details - Live Debugging & Remote Control | Fab
