Regarding PMX Editing-

1. Make sure the Model’s Ree allows major edits, such as taking hair/clothes and transferring them to a different model. This is an essential step, as if the Ree prohibits that action, you can’t proceed with this process.

2. Open the model in PMXE, and remove every mesh/material EXCEPT for the mesh you want to take, i.e. the dress.

3. Delete all unnecessary bones/physics/ts. Does it influence the mesh? No? Get rid of it. Unnecessary bones/physics/ts will make the completed model lag and glitch out.

4. Make sure to save the part as a different file, then move that part and its corresponding textures, spas, and toons into the same folder as the model you want to fit it on. You can move the textures/spas/toons in a sub folder if you want to be organized.

5. Open your model WIP. Then import the part into the WIP. Once you do, you’ll notice it doesn’t fit on the model properly. That’s because the proportions of the dress vs the model you wanna fit the dress on are vastly different.

6. Here comes the tedious, and sometimes, hair tearing process of fitting the dress to the model. I highly suggest enabling the magnet tool for this, so when you move parts of the dress around, the topology won’t look jagged and weird. I also suggest using the model you ripped the dress from as a reference for fitting the dress. Stuff like “where is the waistline of the dress placed” and “how tightly fit is the dress”.

That’s all I have for now, if you have any questions, lmk!