How to draw lines after totals and grand total

Hello Experts,

Hello experts I need the output something like this on smartforms.

Iam able to get the result as below but unable to draw lines at total as shown below.

How would get this.

please help.

Col1 Col2

Customer1

item1 1000

item2 2000

-

Total 3000

-

Customer2

item1 2000

item2 2000

-

Total 4000

-

Regards,

Ranjth n