Post installation

Using layout builder for multiple columns, I see only three choices of percent widths for three columns, and I don't like any of them for some of my nodes.

I want 80% 10% 10%.

Is there somewhere within my own installation that I can add that option?

Hello, i have an issue with my navigation. Somehow its not updateing latest updates that i made. Dekstop works fine, but mobile version is still old. As i understand, it uses only single module, doesnt matter if its dekstop or mobile. 
Dekstop:
https://prnt.sc/mdpFYlVjBm8D
And heres mobile:

https://prnt.sc/rMCIs3lr9Uma

Thanks for help.

Why doesn't Drupal support multi factor authentication? Isn't this a best practice feature these days? What is the best way to implement it? I see there exists a commercial contrib module but my first impression is it is not something I want to use. I'm looking at coding by own solution. Any ideas where to start? (.module hooks, classes, services, ..etc?)

I have a table created with Markdown language stored in GitHub.

I want to copy-paste it into a Drupal node.

• If I just copy paste its Markdown input from a GitHub page, the Drupal output isn't a table.
• If I just copy-paste its Markdown output from a GitHub page, it doesn't appear like an ordinary table in Drupal.

How to paste Markdown table into a Drupal node?

Hi can someone help me with this?

The website encountered an unexpected error. Please try again later.
Error: Wrong parameters for Drupal\msg_mailup\Plugin\Mailup\MailUpException([string $message [, long $code [, Throwable $previous = NULL]]]) in Exception->__construct() (line 111 of modules/contrib/msg_mailup/src/Plugin/Mailup/MailUpClientRest.php).

I'm encountering an issue with my Drupal 10 multisite setup.
The requirement is to host all instances of the site on one domain, but with different URL prefixes:
site.com/ua
site.com/fr
site.com/uk