To make it do what you want by default use this: \define grid(datafilter:"[tag<currentTiddler>]", list:"[list[]]")
Tobias wrote up a summary of a conversation that a few of us had on this group a while ago that may be useful to you. It is here http://tobibeer.github.io/tb5/#Variables%20vs.%20Parameters -- 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/e7ead2d2-4768-4a42-afa7-65101d70806b%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

