On page 26 of the Phantom 4 Pro manual, it says to choose Tripod Mode, select the icon.  It does not show which icon.
In fact, there is very little info on what is shown on the screen(s) and what the functions are.  How about adding something that lets the user determine what is there and what the function is, i.e., what icon is what.
OBTW, I tried to post this on the DJI Forum, but could not get past SAVE DRAFT.  I was hoping someone at DJI could look at their Manual and do a better job of giving instructions.  It might be understood by someone who already knows all the information, but not very well by someone who doesn't, a new DJI user.

it is the icon with tripod and camera on top.

perhaps this video would help