How can I make phbot sell items to a different NPC?

My script is as follows: Event-So-Ok>Blacksmith(Sell)>Storage(Store/Take)

I want to be able to sell at the grocery store as such
Event-So-Ok>Grocery(Sell)>Storage(Store/Take)

How can I do this?

Modify your town script

Example:
walk,6441,1094,-32
walk,6455,1086,-33
walk,6475,1080,-16
walk,6476,1080,-7
walk,6489,1074,0
walk,6498,1068,0
DoGroceryTrader
walk,6494,1066,0
walk,6487,1066,0
walk,6480,1065,0
walk,6464,1063,-32
walk,6459,1063,-32
walk,6451,1062,-32
walk,6440,1061,-32
walk,6433,1061,-32
DoStorage
walk,6423,1068,-32
walk,6409,1078,-33
walk,6405,1080,-33
walk,6400,1083,-33
walk,6393,1085,-29
walk,6390,1085,-17
walk,6383,1088,0
walk,6375,1095,0
walk,6371,1098,0
DoBlacksmith
walk,6400,1101,-33
walk,6406,1102,-32
walk,6408,1102,-32
walk,6411,1102,-31
walk,6429,1099,-32
DoScript

It will not work because the default to sell items to NPC only works with Blacksmith & Protector NPC. I want to be able to change this so my character only visits Grocery during the script and sells to grocery.

instead of it register your character to donwhang so it will be close to blacksmith and event so ok

That will not solve my problem. As I said, I wish to use the grocery to sell items.