Hello Theunis,
It would be bad practice to store something in the installation folders of LTspice.
Copy the symbols(.asy) and the model file(s) in the folder of your schematic.
You will then reach the extra symbols by setting the "Top directory" in the "Add Component"-dialog.
Press F2 then choose the "Top directory".
Your schematic folders should never be under C:\Program ...
Best regards,
Helmut
