Select Alch Skill:
18 | 34 [SKILLID, SHORT]

Select Alch Skill Response:
18 | 35 [SKILLID, SHORT] [01 0B, SHORT]

Use skill book:
12 | 21 [SLOTID, BYTE]

Use Skill Book Response:
12 | 22 [08 07 38 18] // Cannot use due to the level limit

Move Item:
12 | 11 [FROMSLOT, byte] [FROMINV, byte] [TOSLOT, byte] [TOINV, byte]

Move Item response:
12 | 12 [44 02] // [blocked moving (move to chest)]