Mesh

Used to update shape of mesh via shapekeys. Thee are three modes of updates as marked in blue in following image.

Select the new mesh (the ones that should be the targets) Subject.

Make selection as required > choose operation option from blue box > hit "Match" button.

Collection:

• Select the collection with updated shapes. This mode will go through each object in the collection and find it's subject based on naming.

Selected:

• This mode will go through each selected object and find their subject based on naming.

For modes collection and selected naming should be followed, strictly as below. target name should be like this : <prefix>_<subject name>

subject name should be like this : <subject name>

Interactive:

• This mode doesn't rely on naming, it relies on order of selection, subject should be selected last.

You can get the target collection in to window field using "<<".

You can rename selected objects using ">>" button shown in magenta to quickly add desired prefix.