1st step
1. find "gysbXXmc" in your inventory, and drag it on the ground.
2. click the box
or right click box and choose "open" in pie menu.
3. push "Copy to Inventory" button on dialogue.
4. find "SB_l (lefty)" or "SB_R (regular)", and drop it on ground.
5. find "SBHUD" and wear.
6. choose "Skate" in pie menu.
1st step is complete. here is instructions how to control skateboard.
help
if you have question, you can find gy35 Aichi in SEARCH. Notecard is better than IM, send me plz.