Help me customize a plugin

I need help customizing the mobarena plugin, could someone please do it for me.
For the waves I want something like:
recurrent:
default:
type: default
priority: 1
frequency: 10
monsters:
zombies: 20
skeletons: 5
zombie_pigman: 1
blazes: 5
single:
new_wave:
type: supply
wave: 49
monster: chicken
drops: 'potion:8225:10 , potion:8258:10 '
blaze:
type: boss
wave: 10
monster: blaze
name: Hot Head
abilities: chain-lightning, warp-to-player, throw-nearby
ability-interval: 15
reward: 'diamond:5 '
magma:
type: boss
wave: 20
monster: magmacube_huge
name: HotAss
health: low
abilities: fireballs, fire-aura, obsidian-bomb, pull-distant, warp-to-player
ability-interval: 15
reward: 'diamond:5 '
iron golem:
type: boss
wave: 30
monster: iron_golem
name: IronHead
abilities: root-target, shuffle-positions, pull-distant, living-bomb, arrows
ability-interval: 15
reward: 'diamond:5 '
witch:
type: boss
wave: 40
monster: witch
name: Shroomey
health: high
abilities: fireballs, lightning-aura, obsidian-bomb, chain-lightning, flood, shuffle-positions, warp-to-player, root-target
ability-interval: 30
reward: 'diamond:5 '
wither skeleton:
type: boss
wave: 50
monster: wither_skeleton
name: WitherSkelly
health: veryhigh
abilities: pull-distant, fireballs, living-bomb, chain-lightning, shuffle-positions, flood, warp-to-player
ability-interval: 30
reward: 'diamond:10

And for Classes I want something like

Swordman:
items: bow 48:1;51:1;49:2,arrow:64 ,diamond_sword 16:5;19:2;34:3,diamond_helmet 0:2,diamond_chestplate 0:2,diamond_leggings 0:2,diamond_boots 0:2,potion:8229:64 ,potion:8257:10
armor: ''
Bowman:
items: bow 51:1;48:5;50:1;34:3;49:2,arrow:64 ,potion:8229:64 ,potion:8257:10
armor: '310 0:2;7:1;34:3,311 0:2;34:3,312 0:2,313 0:

And for the rewards I want them to be stuff like diamonds, iron ingots, and gold ingots.