Split & Combine Molecules
Split Molecules
API: ui.split_molecules
 GUI: Molecules > Split molecules by features

This method adds multiple Molecules to the viewer by splitting the existing Molecules by a feature column. The feature column should be a categorical column. The new Molecules will be named as <old name>_<feature>. For example, if the original Molecules is named Mole-0 and the feature column is pf-id, which takes values 0,
 1 and so on, the new Molecules will be named Mole-0_0, Mole-0_1 and so on.
Combine Molecules
There are several ways to combine informations of multiple molecules.
Concatenate multiple Molecules into a single Molecules object
 GUI: Molecules > Combine > Concatenate molecules
This method concatenates positions, rotations and all the features of multiple Molecules objects into a single object. If each Moelcules object has different features, the missing features will be filled with null values.

Merge Molecules positions, rotations and features
 GUI: Molecules > Combine > Merge molecule info
This method create a new Molecules object by referencing the positions, rotations and features of other Molecules objects

Copy Molecules feature into another
API: ui.copy_molecules_features
 GUI: Molecules > Combine > Copy molecules features
This method simply copies the features of one Molecules object into another.
