Install the libraries. Then the search panel can navigate. It has realtime filtering.
Easiest way to 'install'
Open a schematic.
P-P ( place part. Hit the letter p on keyboard for place menu , hit it again for part submenu. Altium keyboard shortcuts are very intuitive.. Pp place part pw place wire, pn place net , sa select all , xa exclude all , si select inside so select outside ... And so on... Spacebr rotates objects.
Pp . A little window opens. This is your mru (most recent used). Top right there is a browse button. Hit that. A larger search box opens. Top right of that search box is ( you can dock this search box permanently .. More on that later ) a button with three dots on it. Click that. This shows the list of installed libs. You can add them there. Make sure they have a checkmark on them or the lister will not search in them. ).
Done.
To dock the library browser. When in a schematic. Look at the bottom status bar. Bottom right there are a few lables. System , sch , pcb and so on. Click sch and select library browser. It will now dock left of the screen automatically.
Another feature that very few people know.
If you are in place mode , you can clone a part by pointing at it and hitting the insert button on the keyboard.
Lets say you already placed a few capacitors and resistors and now you need to place another capacitor , of which you already have one on the sheet. The last part you placed was a transistor.. No need to goescape escape, find the cap , select it... Simply move the cursor over the capacitor already on screen. Hit insert. Presto. Altium understood you needed one of those...
Altium is not a tool you learn in a day on your own.... This software has a lot of history behind it and a lot of development. You can learn the basics in about an hour if someone sits down with you and shows you the basics.
Keep an eye on the status bar. If you are in the middle of a command the statusbar will have scrolling messages in it. Read those. They tell you what you can do at this point in time..