Please clarify for us if you are using MX linux or antiX linux.
If using antiX linux, please clarify which File manager are you using: ROX or SpaceFM
If using ROX, Open any ROX window, right-click on an empty space, select Options from the right-click menu.
Go to Tools/Minibuffer and make sure all options are active and you are displaying the toolbar as icons.
If using SpaceFM, open a folder with SpaceFM and right-click on an empty space. Select View> Toolbar to display the toolbar.
If this doesn’t help, please explain your situation better.
I am sorry, I didn’t saw there are different forms respective for different distributions.
I am on MX-Linux and think the file manager is called Thunar. But your advice already helped me – after trying the right click without success already in the first place did I tried it now again on other places of the GUI. So I found a context menu in the file section that included a properties entry. From there I could click on a help button which linked me to this site: https://docs.xfce.org/xfce/thunar/4.12/working-with-files-and-folders
The pictures finally showed me the short-cut for showing the menu (Ctrl+M).