Not sure how you are selecting the spell at the start of the sequence (when you run Concentration), but metascripts would offer a couple of ways to do this. Muler Muler could store the data point in the same command line. Player Centric Version For instance, imagine the player with the character who is concentrating has a Mule named MyMule on the character sheet (let's call the character CheekyMcGee ). I'll imagine that you are using a roll query to make the selection of spell to concentrate on. In that case, you can store it like this: Imaginary Concentration command line (original): !Concentration --spell|?{Spell|Flaming Down Unders|Dangle Puncher|Clench Bot} Adding Muler Storage: !Concentration --spell|?{Spell|Flaming Down Unders|Dangle Puncher|Clench Bot}{& mule CheekyMcGee.MyMule}set.CheekyMcGee.MyMule.Concentrating = ?{Spell}/set Later, when you wanted to retrieve it, you could get it like this: !{& mule CheekyMcGee.MyMule}get.Concentrating/get{&simple} In a template, that might be: !&{template:default} {{name=CheekyMcGee Concentration}} {{Spell=get.Concentrating/get}}{& mule CheekyMcGee.MyMule}{&simple} GM Centric Version If you, as a GM wanted to keep track of all the spellcasters in your party and what they were concentrating on, you could have a player-public mule character -- we'll call it PartyMule . Then add a Mule ability called Concentration . That one Mule would store the spells each spell caster is currently concentrating on. Each player would need control rights to the character, but then you could use those names in basically the same verbiage as above, except that you would store the variables based on the character names: {& mule PartyMule.Concentration}set PartyMule.Concentration.Cheeky = ?{Spell}/set So you are building a Mule that looks like: Cheeky=Flaming Down Unders Slappy=Dangle Puncher Lizzie PurePants=Dangle Puncher Later, anyone (including the GM) could retrieve the spell Cheeky is concentrating on using: !{& mule PartyMule.Concentration}get.Cheeky/get{&simple} Plugger Plugger could make it even easier. Designate a custom attribute on the sheet (like Keith suggested). Then update it using ChatSetAttr run as a Plugger plugin. Feed ChatSetAttr the name of the spell however you are selecting it. Here, I'll keep using the ?{Spell} roll query: {&eval}!setattr Concentrating|Clench Bot{& /eval} (I forget the exact syntax for CSA, but you get the idea.) Drop that into your command line anywhere, and it should be processed (storing the information and cleaning the command line) before Concentration even sees the message. Later you can retrieve: @{Cheeky|Concentrating}