Update Lot No. in LS Retail POS

Hello,

We are implementing Lot No. in all of our transactions, moreover, we are using LS Retail.

the issue is the following: after we choose the Item to sell in LS Retail POS, the system will prompt for Lot No., cool, we can use the Lookup the view the available Lot Nos. and choose one, once chosen, if the user wants to modify it, how will this be possible?

Regards,