Canon EOS R50 Mirrorless Camera (White) - Manual (Page 440)

Active Touch Area
You can specify the area of the screen used for tap and drag operations.
1.
Select [Active touch area].
2.
Set the area that will respond to touch.
Note
A round orange frame [ ] is displayed when you tap the screen with [ : AF
area ] set to [ Whole area AF ]. After you lift your finger at the position to move the
AF point to, [ ] is displayed and that subject is tracked. To cancel subject
selection, tap [ ].
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