${DOM} with underscore

SYSTEM INFORMATION
OS type and version Ubuntu Linux 22.04.3
Webmin version 2.101
Virtualmin version 7.7

Hi, is there going to be a variable like ${DOM} that replaces the dot with underscore?
eg. example.com > example_com.
This is useful for domain templates > default install scripts for me.

Thank you!

Why ? Domain names do not allow an underscore but allow a hyphen

Right, but in case of defining a default script installer (in template) there is useful to set the domain with underscore instead of dot, into the database field.
eg, in my case, i have the roundcube in the list of default script installer and i would like to have a variable like ${DOM_W_UNDERSCORE} in database name. real example; ${DOM_W_UNDERSCORE}_roundcube > “example_com_roundcube” as database name instead of "example.com_roundcube.

Apart from vanity I can see no reason can you explain the positive benefit of altering something that works. I guess the install scripts workout the optimal solution for installing a piece of software

I will just not add the roundcube in the Default Script Installer list.
Thank you for your time.