This walkthrough covers the quick controls for navigating Ableton Live's Detail View. Use the triangle button in the lower-right corner to open or close it, and the lower-left triangle (or the question mark key) to bring up the Info View for context on whatever you're hovering over.
Once Detail View is open, Shift + Tab flips you between Clip View and Device View without touching the mouse, a small habit that keeps you in flow when you're bouncing between editing a clip and tweaking the device chain behind it.
Inside Clip View, tabs split into two groups: Clip tabs on the left govern the clip itself, while Tool tabs on the right let you shape its contents. MIDI clips give you Notes, Envelopes, and Note Expression tabs, while audio clips offer Audio and Envelopes, so the options adapt depending on what type of material you're working with.