Custom condition message

Hello, I have two practical suggestions, request that you could implement.

The local carriers that collect COD payments upon delivery limit how much they can collect.
However not all buyers understand this, therefore sometimes we get questions like why the COD option is not available, and why can’t I pay to the delivery driver. Removing the COD option from the checkout page completely without any notice is not a good idea.

1.
Could you make the error message to be shown below the COD payment option description on the checkout page and let us write our own custom error message?
I prefer to inform users with this message “Delivery driver can collect up to 2000 Eur. Please select another payment option.”

This error message can be shown either
– immediately on checkout page if the total value exceeds a certain amount
– or after the buyer presses the “place order” button

Example illustration of where this message should be sown:
https://imgur.com/LW1ncgj

2.
Could you give us the option to write an individual sub description after a title?
Example illustration:
https://imgur.com/qlOwdFI

Thank you