Length & Width field for rectangular coins/exonumia [Risolto]

When a rectangular shape is selected in the modification or creation of a new coin/exnumia can the diameter field be disabled and a new field of length/width be shown instead or follow the banknote method of a size field. The diameter is an inapproriate field for a rectanugular shaped coin/exonumia.

I believe the guidelines should also be updated to reflect this.

I think putting the height and length in the additional information field of the shape and the diameter as size has its merits. I only use coin flips with round windows, right now I can see right away what kind of flip I need.

here is something from the historical archives:
https://en.numista.com/forum/topic101729.html#p846502

Hello,

Rectangle, square, oval and spade coins can now have their size in 2 dimensions.

See for example: N#13433