Time delayed Automatic Focus for self shot Video?

[dafassi]

Hi, i want to record my self and have the Problem that im alone. Is there an Option to let ml process automaticly a Auto Focus After a given Time?
In example:
I have 5 sec to go to the Front of the camera. When im there the camera focusses on me and then Starts Recording. Or just Safes the Focus Position.
Possible?