no 'edit' button on screens in new install

I have just installed FA under xampplite, and all seemed well. However, there are no 'edit' buttons anywhere.
So, for example, there is no way to edit one of the default (or any newly input) account because it cannot be selected for editing - only addition is permitted.

The screen does not match the manual which clearly shows an edit button to the right of the GL code  drop down in the maintenance screen.

Have I missed something obvious here, or did the setup go wrong invisibly?

Any help gratefully received, and TIA

axe_man