Ridiculously easy. (Leading and trailing triple backticks to make the code below viewable at TalkTiddlyWiki)
``` <style> .bu {width:3em;height:3em;background:white;border:2px dotted lightgray;margin-right:-6px;font-weight:bold;} .bu:hover {border:2px solid black;}} </style> <$checkbox field="grid" checked="yes" unchecked="no" default="yes"> Show Grid</$checkbox> <$list variable="r" filter="[range[1],[8]]"> <$list variable="c" filter="[range[1],[8]]"> <$let cell={{{ [[cell]addsuffix[.]addsuffix<r>addsuffix[.]addsuffix<c>] }}} cell_val={{{ [<currentTiddler>get<cell>else[.]] }}}> <$button class="bu" style={{{ [<cell_val>match[X]then[background:gray;]else[color:white;]] [<currentTiddler>get[grid]else[yes]match[no]then[border:none;]] +[join[]] }}}> <$action-setfield $field=<<cell>> $value={{{ [<cell_val>match[.]then[X]else[.]] }}}/> <<cell_val>> </$button> </$let> </$list> <br> </$list> ``` -- 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 tiddlywiki+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/e67f4dae-6295-4885-a6bc-13e4de298acen%40googlegroups.com.