when i make a content map, i would like to have a option with that map that says "Show to all, exclude accounts" or something similar
for example: show to all, exclude accounts X .... and then you can select wich accounts to exclude

You can restrict content to some users only. There is two ways to do this:

1- Lock the folder with a password and provide the password to those users you like to access the content.

2- You can also create a folder visible just for some users. This capability must be activated following these steps:

Content >"Folder's name" > Gear Icon > Settings … Show to accounts