Request to add "No Date" to 1 Solidus - Carl X Gustav and 1 Szeląg

is it possible to add "No Date" or ND to the folowing Numista coins

1 Solidus - Carl X Gustav
https://en.numista.com/catalogue/pieces31705.html

1 Szeląg
https://en.numista.com/catalogue/pieces30936.html

1 Szeląg
https://en.numista.com/catalogue/pieces24048.html

I own several coins that are non-centred and because of that date is not present on the coin. Also some dates are not visible because the coins are a bit worn.

Note that Numista have unknown date option for the following coins:
https://en.numista.com/catalogue/pieces42423.html
https://en.numista.com/catalogue/pieces31474.html