You can use Rules to show/hide the repeating secion on the form, but cannot disconnet it. 

In the Nintex Forms Designer, select the repeating section, add a rule as shown below.

But if you hide in the edit mode, user will not be able to update the content in when item is in Edit mode. It allows to add the content only in New mode, not sure if that is your requirement.

Hi, we want to connect and disconnect the field to the repeating programatically via Jquerty or if this can be done in Rules.

We want only the repeating to connect during View/Display Mode we will populate the repeating section in EditForm via Jquery

Is is possible?