2bSolo, I think you will find much freedom for what you want to do somewhere outside of BealBand. As in, a good dedicated DAW that is designed to handle the type of plug ins and synths you will most likely use.
RealBand does what no other software can do. Regenerate Real Tracks and many editing features and much more. It is a unique tool in itself. But, for now, until further development happens it has many limitations when trying to get it to function as a full fledged DAW also. I think that leads to some frustrations at times.
For that reason, many of us do most of our work in other DAWs. I, and many others, have come accustomed to Reaper.
Here is my basic work flow from program to program: BIAB; get a chord grid going in and chose a main style and a few alternates. Create Song format, tempo, force drum rolls, tempo changes, holds, pushes, count in, etc,... without being too concerned if it is not exactly, persmactly what I want. Just a basic outline. For the midi in BIAB I use the TTS-1 to get a basic idea of what the instruments are doing. At this point I'm not too concerned that the midi drums do not sound like Nashville. I pay attention to their basic behavior.
Some people take their BIAB generated tracks into RealBand to get their Real Tracks and other tracks further developed before taking them into a dedicated DAW or not.
From their I take the BIAB parts I want and put them into my DAW, Reaper, to edit them. That's where I get my pushes and holds to do what I want, record some live instruments, choose what VSTi instruments I will use for midi drums, midi bass, midi strings, midi piano, etc,... along side my Real Tracks and stuff I record. I almost always end up with a different VSTi instrument for each midi track. Once in a while I actually use some voice in the TTS-1. Right now I working on a song and the midi drums track uses the SI Drums for a kit but the shaker and tambourine are sounding through the TTS-1 for example.
I do think that PG Music will at some point be bringing us better features in BIAB and RB. It only makes sense that they would do that. But, I don't know what or when. Hopefully the 2019 versions will have pushes adjustable to the 128th beat and more robust DAW features in RealBand. In fact, I did not upgrade from BIAB 2016 simple because the only things I would use in the last 2 upgrades are a few more styles and few other things I can do without for now. But that's just me. Better pushes would get me interested in spending a few hundred dollars but I already know how to manipulate those once I get the project into Reaper. So, maybe not.
Anyway, there's some thoughts.

Does the noise in your head bother me ?