{@flowNumber@} circled or/and squared

For an exercices page I want to have {@flowNumber@} with circle or/square.
I tried some font “circled”,combinumerals,numberpile but all use other character to write number like q=1, so not useable for {@flowNumber@}
Somebody found a solution?
Best regards

Bravura text has ② and sim at Unicode U+2462 , but I can’t find any other way to get than to copy it from sign chart in Windows, and paste it in before the flowtitle token (and delete the flownumber token.
Circled numbers:
U+2460 = 0
U+2461 = 1
and so on