Progressive DC Macro

Is there a way to have a multi-dice rolling macro where the target DC changes depending upon previous successes? Example: roll a d20. If the result is 15 or more, the next roll's target number is 14. Roll 1d20 until a 14 is reached. This reduces the target number to 13. Continue until the target number is 1 or more. Then note the total number of rolls required to do this.

No, not without a Pro subscription anyway. You would need to use a query to ask for the current modifier, or store the target number on an attribute and have a call to that value. 

You could set up a token with a couple of values in the 'bubbles'. Bar1 being Target and Bar2 being rolls made. It would be a manual process but you'd use a macro like: [[1d20>@{selected|bar1}]] which would result in a 1 or a 0 depending on if it was a success or not. You'd repeat that macro until you got a 1 then update bar1 to be 1 lower and bar2 to record the number of rolls made so far. Rinse and repeat until you get to 1 as the target and you should have neatly recorded the number or rolls with minimum effort? It's not the most elegant solution but beyond a pro subscription (on the game creators account) and therefore the API you are left with tabletop-esque solutions. Took me 28 rolls in testing... is that good or bad? Target of 13 took me 8 attempts alone :(