Reroll 1's and 2's

I saw this post and referred to the wiki.  But I still see a problem with using what I find there.  The macro will continue to reroll 1's and 2's until no 1s or 2s end up in the roll.  I'm pretty sure that in 5e when you get a mechanic like this from a skill or feat that you must take the 2nd roll, even if it  is a 1 or 2.  Is there a way to make a dice roll reroll a 1 or 2 only one time?

You just had to go a little farther down that page in the wiki: Rerolling Dice (B,F) rCP Several systems require that certain dice be reroll, for example brutal weapons in D&D 4e require any 1s or 2s to be re-rolled and the original die value ignored. The reroll modifier can be specified multiple times to allow rerolling at multiple Compare Points. By default the dice will continue to reroll until the result is inside the defined parameters. Optionally you can set the results to only reroll once regardless of the outcome. Example Rerolls 2d10r<2 - Roll 2 d10's and reroll any time a 2 or lower is rolled 8d6r - Roll 8 d6's and reroll any time a 1 is rolled 8d6r2r4r6 - Roll 8 d6's and reroll any time a 2, 4, or 6 is rolled 2d6ro<2 - Roll 2 d6's and reroll anything less than 2 but only once I think that last one is what you are after.

If you post your macro, someone can look it over and see what is happening. ro is the syntax for reroll once.

That's it!  Thanks so much!