AME for Purchase Order

We have a below requirement.

Please let me know the steps to implement the hierarchy  using AME.

POSITION A	Initiater	Initiater - Workshop Stores	1st	approval limit 5000
POSITION B	Initiater	Initiater - Workshop Stores	1st	approval limit 5000
POSITION C	Initiater	Initiater - Workshop Stores	1st	approval limit 5000
POSITION D	Initiater	Initiater - Workshop Stores	1st	approval limit 5000
POSITION E	Initiater	Initiater - Workshop Stores	1st	approval limit 5000
POSITION F	Initiater	Initiater - Workshop Stores	1st	approval limit 5000
POSITION G	Initiater	Initiater - Workshop Stores	1st	approval limit 5000
POSITION H	Initiater	Initiater - Workshop Stores	1st	approval limit 5000
POSITION I	Initiater