Format style to show first initial not full first name

annie.berry

Hello, is anyone please able to direct me towards which line(s) and describe how I amend my style to show a first initial only, no full stop, then last name. Rather than full first name and last name?
This is the style: https://raw.githubusercontent.com/annie-berry/ofstedhousestyle/main/v1
It seems to be around line 37 but I can't work out if this can be amended.
Thanks in advance

annie.berry

I have an addition to the query, for 'Reports' I don't want the author name to show, instead I need the institution name to show after the Title, as below:

‘Title field name of report’, Institution field, September 2014; https://www.url.

Can anyone advise on this please?