How can I add document signatures to a dynamic table using Adobe LiveCycle?

I have a table where I am adding rows dynamically by adding a + or - button to add or remove rows to add to the table.

Right now I have a name field and an e-sign field. The problem I am having is that the document signature cannot be repeatable/ needs to be unique and so cannot be added to a dynamic table? Is there a work around for this?

Ultimately what I want is to have a PDF form look like below:

+ -
First Name | Last Name | Signature
First Name |  Last Name | Signature

When the user clicks on + from the form above, then it just adds a new row like:

+ -
First Name | Last Name | Signature
First Name |  Last Name | Signature
First Name |  Last Name | Signature

Problem is the e-signature is a new instance and it says it cannot be repeatable? I want these to be different signatures but on one form to be added dynamically. Does this make sense? How can I do this?