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The easiest way to see how the Subform button works is to use the existing built-in App Expenses Claims. Here are the steps:

Steps

Screen (Click to view)

Start the Joget Server and open the App Center.
Log in as admin and click on the pencil icon on the Expenses Claim to open the Design App. (see Figure 1)
Click on Expense Claim Form and you will be directed to the Form Builder.
Hover the mouse over the Expense Claim Details section and click on Edit to open up the Edit Subform properties.
Take note in the Form field that is set to Expense Claim New form. (see Figure 2)
Click on Preview and notice that the first section displayed is the Expense Claim New Form.

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^{Figure 1}

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^{Figure 2}

Subform Properties

Edit Subform

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