Here's my solution to a similar desire: I use Bob (a version of node.js TW5) and so all the tiddlers are stored as text files with the ".tid" extension. That tiddlers folder I have shared between my work and home PC's and my android phone with Syncthing.
With that in place, you can make a new tid file however you choose and place it in that folder, it'll show up in your wiki. >From my PC I have a keyboard shortcut to run "newTiddler.sh", a bash script >that pre populates the required fields as outlined above, and on Android I >have a Tasker script that does the same. My main purpose was to be able to quickly write down an idea before I forget it and this setup helps. I even have the folder synced to a couple of computers on which I don't have Bob installed, just so I can add the odd file "on the fly" -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/5082106e-d5f8-454a-a034-68221aba62eb%40googlegroups.com.

