Possible to delete a matrix from an arrowfile/project?

[Austin-s-h]

Hi! In my adventures with hd5 files, I was wondering if it might be possible to implement a function to remove a specific matrix from an arrowfile/project. I've found during some of my troubleshooting (due to some functions working in 1.0.1 and others only work for me in 1.0.2) that removing a matrix might help resolve some conflicts buried deep in my files.

I was struggling with addDeviationsMatrix using ArchR 1.0.1, but re-initializing the project (removing a partially filled MotifMatrix) fixed the issue.

Just a thought on a nice functionality to make. Or build into the subset function that already exists.