https://www.lotrointerface.com/downloads/info1133-Potions.html
Potions is a plugin that I find useful for holding my potions in a convenient to use spot without taking up Quick-slot spaces. You can position the window wherever you want and even turn off the frame so that is is slim and unobtrusive. I know that Palantir has a place to hold Potions but I used this before I found it and now it is still useful for me.
You can customize the number of slots to suit your needs. You can right click on the icon to open the options menu or use the command line. The Commands are:
/Pot show – show the window
/Pot hide – hide the window
/Pot esc – Activate or deactivate the escape key
/Pot clear – clears all entries
/Pot options – opens the Options window
/Pot lock – locks or unlocks the window
/Pot always – always shows the window


