Meshing

Sims 4 Studio - Very Detailed Guide, How To Create Clothing

IllogicalSims - Basic Mesh Editing | The Sims 4 Tutorial (CAS)

Gaming Mermaid - The Sims 4: My First CC Mesh Edit | Mesh Editing in Blender // Step by Step Process

Tukete - Meshing with Blender and texturing with PainNET

Other

Zeussim - How to make BGC tops out of dresses

Sims 4 Studio - How to shorten a mesh in blender

Trillyke - How to create a see through mesh

Sims 4 Studio - Changing Body Category to Top Category

Sims 4 Studio - How to create a transparent skirt

Sims 4 Studio - Meshing Folds into Clothing Using Blender

NightingaleSims - How to simulate a satin texture on your clothing