Bukkit

I'm using MyCommand v5.5.0 for Minecraft server version 1.14

I'm trying to make a command that adds enchantments to what the player is holding using %PlayerOptions%addEnchantment but I can't seem to set the enchantment level higher than 1.

my command:

sharpnessench:
 command: /sharp
 type: RUN_COMMAND
 runcmd:
 - '%PlayerOptions%addEnchantment: DAMAGE_ALL:$arg1'
 - '%PlayerOptions%playSound: ENTITY_PLAYER_LEVELUP:100'
 cost: 5000.0
 permission-required: false

as you can see, I set the first argument to the enchantment's level but the enchantment level won't go higher than 1 even though I did /sharp 2-5. Is it supposed to do this or am I doing something wrong here?