I don't know if it can be useful to answer a discussion months ago, but I still leave a comment.
to inflate the mesh locally you have various ways.
in the "model" section of the wb, you can view both mesh and coordinate systems.
What I suggest is to create a new coordinate system in the center of the area you want to refine so you can use it as a reference. to do so just click with the right on "coordinate systems" -> insert -> coordinate system. in the details window on the bottom left you will define the coordinates of the origin of the new system, and the game is done.
once you have the new coordinate system, go to mesh and back with the right, insert -> sizing. this will allow you to define an area where you can refine your mesh at will. Once you insert the item, selecting it, in the window of details on the bottom left you will have to choose which geometry to influence, the type of threading and where to thread.
first select the whole model through the body selection key and "apply" in "geometry". Then choose in the "type" drop-down menu -> "sphere of influence" and finally in "sphere center" the coordinate system you created earlier.
Once you do this, you will need to define the range of the ball and the size of the elements.
at the end, when you go to meshare, you will have that all that is inside the sphere will be meshato with elements of the size you define.
this is a solution that allows you to refine all that is within a volume. If you are only interested in a surface, you can do a similar process by simply selecting faces.
the last thing is the use, always in "mesh", of insert -> refinement. this allows you to select one or more surfaces, where the mesh will be refined and inflated.
If you do not want to pass through one of the methods described above and you only care to refine on the surfaces, using "refinement" is the best thing.
I hope I could have helped you even though it's been months.
