This is not doing much more than generating a list with the relevant object names bundeled. To be enhnaced at some stage.
mcell_gen_atlas(mat_id, mc_id, gset_id, mc2d_id, atlas_cols = NULL)
id of metacell object ina scdb
id of metacell object ina scdb
features defining the atlas (to be sued for determing projection)
projection object id, to define the atlas 2D layout