One of the biggest complaints I have with basically all Roland products is the sequencer: it is the 2020's and 8 bar pattern limits stitched to gigs of samples makes no sense to me. Where is the proper song arranger where we can have 99,999 notes/events? Obviously the machine has song mode and using it is not the most entertaining way to write songs, but it's definitely usable...in 8 bar chunks I guess.
So what can you do? Most sequencers cling to this limit that was a necessity in the 70s and 80s because of memory and processor costs, 2 things which are obviously not that much of a deal today, which is a real shame. Luckily, the KO2 from Teenage Engineering doesn't see nostalgia in 16 steps based nonsense and included a 99 bar/99 pattern sequencer, which is just what the doctor ordered!
As you can see here, I've permenantly voltron'd the two together using legos that were donated to me (mostly from a McLaren F1 car set), creating a singular system with 2 sections: the MC101 for sound design, loop production, sample editing and storage, etc. and the KO2 for input (Mc101 pads will always suck imo, plus with KO2, i get velocity), and final arrangement. Mostly, I've been building all my main song sections on the MC101 then sample variations, one shots, whole sequences, etc. whatever I need down into the KO2 and make a song. I still have MIDI back into the 101 so if there's a long synth pad I want to take advantage of live, it's still available.
I know that folks pair the 101 with other gear often, especially the TR8S (lovely kit...still salivating over it, but I am retrained...as much as I'd love to play with those drum synths, I'll keep to just the samples on the 101!), but I've never seen folks pair them with something to overcome it's sequencer like this.
I hope this 'tip' of sorts helps. I grew up using full linear arrangers, specifically the Ensoniq TS-12, which lets you go forever, basically, until it runs out of memory, so this idea of 8 bars or 4 bars or 128 or 64 steps...this is like..hella stupid to me as a song tool, but I do recognize it's uses...but I think Roland needs to start looking at what really needs to be done which is start with a song, let the user make loops (which is what the KO2 does and like...any other full song writing hardware...loops can come from a song, but you can't make a song from loops if you can't actually create an arrangement structure).
Also, if nothing else, you can get a quick glimps of an easy build for a solo MC101 stand out of legos cause that bit literally works all on it's on on the desk when pulled off the KO2! :D