One of the many issues with the built in split form is that it uses a datasheet view rather than a continuous form.
This makes it difficult to add buttons such as View / Edit / Delete
Using a continuous form instead means that becomes possible
There are various ways of simulating / emulating the split form idea but improving upon it.
Thanks for providing the link to the emulated split form
@MajP
I've also created another page which shows a variety of alternatives to split forms that developers can create
The Access split form has several important limitations. This article shows how you can create your own simulated split form which doesn't have the restrictions inherent with the built-in Access split form
isladogs.co.uk