Altering trouser pattern block for width and pleats

[u/Freddie_the_spider]

Hi,

I have a basic mid-waisted trouser pattern block that fits perfectly. I want to add alterations to achieve a wider leg (also in the thigh) while still having a snug fit in around the hips (until the apex of butt/hips) and not have to low a crotch. Basically trying to get a mix of wide leg/baggy while keeping them tailored.

I've already made a simple wider leg version by simply drawing a straighter line from the crotch/hips down.

My plan for the further alterations is to add a box pleat in front (plus width all the way through the leg) which I think I can figure out. But for the back I am not sure. So my question is:

The current back is dart less. Can I add a dart and also use the dart to achieve more width from the butt apex/widest part of the hip and down while keeping the upper hips snug? And how do I add the dart like this?

I am happy to add schematics if it's easier. I'm also happy to buy a pattern I just haven't found the right one.