Hello Steve,
My only offer of help is - I hope - constructive criticism and useful suggestions.
I tried the "Maximum effects per group (0 to disable): to 15, but this just adds further mouse movements to get to where I want to select.
To make the Effects menu easier to use, can I suggest a simple tick box next to each item, and a Favourites list at the top. See the attached image.

- Effects - Favourites menu2.png (22.04 KiB) Viewed 1092 times
The full list is in strict alphabetical order - no split sections, which are a bit bewildering to a new (or any?) user.
Then just tick your favourites, and each one jumps to the top section. In the screenshot I created, I have ticked the only 13 effects that I ever use (these are for processing sermon recordings for our church web site), and I never need the others. Hence an easy Favourites list at the top.
The selections would need saving to a config file so that they are retained when updates are implemented.
This could be useful to a lot of users. What's your opinion?
Philip T.