The `tw-import-tiddlers` message inserts a list of tiddlers into the pending import tiddler [[$:/Import]]. It also applies any active ''upgrader'' modules to each tiddler as it arrives (see the UpgradeMechanism for more details).
The variable `tw-auto-open-on-import` controls whether the `tw-import-tiddlers` message automatically triggers the display of the pending import tiddler [[$:/Import]]:
* ''no'': The pending import tiddler is not opened in the story
* ''yes'': The pending import tiddler is opened in th story. This is the default