Oh? Is that what's meant by Zen node? In another post I got some help from Jeremy making a similar tool.
Put this code into a tiddler:
<$select tiddler="$:/state/side-edit-tiddler" tag="input">
<$list filter="[!is[system]sort[title]]">
<option value=<<currentTiddler>>><$text text=<<currentTiddler>>/></option>
</$list>
</$select>
<div class="tc-tiddler-frame">
<$edit-text tiddler={{$:/state/side-edit-tiddler}} class="tc-edit-texteditor"/>
</div>
Then open the tiddler in it's own window. From the drop down select the tiddler you want to concentrate on. That's it. Distraction (and edit-bar) free writing. I'm sure someone could come up with a better version (like restoring the edit bar) if there was a demand.
Now for some reason, I want to go out and repair a motorcycle.
HTH
Mark