What icons are these

Hi, I’m new to grasshopper and following some examples, I can’t find these icon in any lists or in the interface. does anyone know their names / if they still exist / any replacements?Capture1Capture


First one is Weaverbird Catmull-Clark Subdivision from the external plugin Weaverbird

Second one looks like an obsolete version of Merge? The new version has variable number of inputs.

Thankyou qythium!