Photo stamping expression

Hi all.

Bottom line - I’m not very useful at expression building, so need a hand with expression for Photo stamping.

Below is the standard (photo stamping) text, although i would like to add OSGB X,Y coordinate, to 6 digits each. - such as OSGB Grid Ref - 289000, 836788.

Would be nice to have Letters and numbers format also such as - NT3456,4567.

Any help appreciated.

Regards

Enda

[% format_date(now(), ‘yyyy-MM-dd @ HH:mm’) %]

Latitude [% coalesce(format_number(y(@gnss_coordinate), 7), ‘N/A’) %] | Longitude [% coalesce(format_number(x(@gnss_coordinate), 7), ‘N/A’) %] | Altitude [% coalesce(format_number(z(@gnss_coordinate), 3) || ’ m’, ‘N/A’) %]

Speed [% if(@gnss_ground_speed != ‘nan’, format_number(@gnss_ground_speed, 3) || ’ m/s’, ‘N/A’) %] | Orientation [% if(@gnss_orientation != ‘nan’, format_number(@gnss_orientation, 1) || ’ °’, ‘N/A’) %]