[2021] YSK: Replays and Spectate mode innately have the ability to have extended zoom

In Spectate and Replays, you can zoom out just like in the professional live streams by pressing Ctrl-Shift-Z. You don't need to have Skin Spotlights' Creator Suite to do this, if you don't want to install anything extra.

Also, if you want to have that smooth panning, bind a key to Drag Scroll Lock in Camera Controls under Hotkeys.

The source is this surprisingly hidden video from a rioter which details some other interesting things (one of which unlocks the First Person Camera): https://youtu.be/wxnbfgkZkzQ I'm not sure how the controls compare to the skin spotlights tool for the FPS camera, but that't not the point of this post.

Edit: As /u/Caenen_ rightfully points out, the video does have you add a line of text to a config file to get the FPS camera, and also your keyboard layout will change what the keybind is for unlocking the camera zoom - mine is QWERTY, so the Z key is the bottom left - so it's probably that key on yours too.