Are you talking about freezing an animation? Or are you looking for the Astral State Value (changing value allows the usage of BM2, BM3 exclusive skills)?
If it is freezing the animation, try this:
• Set CE Scan to 4 bytes.
• Set to unknown initial value
• Click First Scan
• Equip Bike/Skateboard and activate bike/skateboard skill
• Set to changed value, click next scan
• Deactivate bike/skateboard skill
• Set to changed value, click next scan
Repeat the last four instruction until you find the address you're looking for.
To check if it is the correct address, freeze the value and try to walk, if the animation does not change, then you've found it.
If it is Astral State you're looking for, try this:
• Enter the game with any classes that has an astral weapon (FB, FA, FG, FS)
• Set CE Scan to 4 bytes
• Set to Exact Value
• Enter 2 and click first scan
• Change character to a class without an astral weapon (BL, WI, WA)
• Enter 0 and click next scan
Repeat the last 3 instructions until you found the address you're looking for.