Hello,
I have tens of jailed ssh users to their respective home folders.
They share the same group name.
They can't run any anything other than ls.
I want one of them run mysql commands. She has a dedicated mysql user and I want her to run commands like mysqldump or altering tables.

Is this possible?
My three day google search journey didn't give me anything.
Thanks in advance.

By definition a jailed user can only run things in the jail.

This means to give her access to commands you'd have to copy them into relevant subdirectories of her jail. e.g. to use mysql which is in /usr/bin/mysql you'd have to copy it to <jaildir>/usr/bin.

However, your larger problem is having the commands is of no benefit unless she can access the database itself and the only way to do that would be to put it in the jail as well. (Not an issue if she is the only user of the DB but if it is your main DB it is an issue.)

What you might consider instead of jailing this particular user is to give her a regular login and use sudo to let her access the things she needs.