As it says in the title: after you import some tiddlers, clone that “Import“ tiddler. You may add info in the title so you can find it later: “$:/Import–202604-210948–DOGO-COLOURS“
Why?
Logging your imports helps you find the imported tiddlers later. If you remembered you imported all of your of password tiddlers last month but now they’re scattered about in your TW, you could just search your import history.
Hit the “edit“ button and copy all the contents as is. If you need to make a JSON export of those particular sets of tiddlers or you want to export as an HTML, you can just dump that into the Advanced Search Filter and export them.
You could do it the Tiddlywiki way, use tag to manage them, or create a dedicated table tiddler using plugins like hyper-table. And add that table tiddler to sidebar or folder tree (toc tiddler in the sidebar).