I copied my other arm vertices to the other arm. Then I want to flip it horizontally then vertically. The problem is, if I flip them using Copy Symmetrically, it creates another set of vertices. It also deselects the original vertices so I can't delete them all together. Is there a way so that I can just have only the flipped vertices?


Hi!
After reading your post, we realized that there was a simple mirror function that was missing, not a copy function.
We apologize for the inconvenience caused by not considering the convenience of the tool carefully.
In the current version, it seems that you have no choice but to use the mirror copy function.
Please refer to the following explanation.
(1) Select the "Edit" tab in the Mesh editing screen.
(2) Select the vertices you want to copy.
(3) Activate the "Mirror" mode.
(4) Since you should not copy in place, enter a sufficiently large value in the "Position" of the Ruler Settings. It is also convenient to press the left/right (or up/down) buttons.
(5) If you move the Ruler, the vertices to be copied will not overlap with the original vertices.
(1) Create vertices by pressing the "Copy Symmetrically" button.
(2) Disable the "Mirror" mode.
(3) Select the original vertices and press the "Delete" key to remove them.
(1) Move the copied vertices appropriately using the gizmo.
(Moving multiple vertices precisely is not supported, so move them appropriately to fit the image.)
The above method may solve the problem for now.
We will update this issue later.
If you have any further questions about this issue, please leave a comment!
Thank you.