Hi @CCJones ,
If you want to simply represent the Layout in a Custom Card within a Form then that's possible.
This can be done on the Form properties under 'Add Fields' properties and click ellipses to 'Add a Custom Card'.
Simply drag and drop the Card wherever you like and insert your Repeating Table
YouTube Link for Custom Card on Form
Now considering you want to display Collection as Table using HTML control and then use that content to a column in your Datasource.
Well you can do that as well, below is an example I created for the demonstration.
Here's how the HTML Table looks (Customization is all upto you)

Highlighted area in Red is dynamic content directly from a collection like this
ClearCollect(
colMultiLevel,
{
FirstName: "Jill",
LastName: "Smith",
Age: 50
},
{
FirstName: "Eve",
LastName: "Jackson",
Age: 94
},
{
FirstName: "John",
LastName: "Doe",
Age: 50
}
)
Just few sample records
In HTML control:
"<table border='1' width='100%'>" &
"<thead><tr><th>First Name</th><th>Last Name</th><th>Age</th></thead>" &
"<tbody>" &
Concat(colMultiLevel, "<tr><td>" & FirstName & "</td><td>" & LastName & "</td><td>"& Age &"</td></tr>") &
"</tbody></table>"
That's it!
Now you can use the following code in the field you want to submit in a Form as
//Considering my HTML control name is 'HTMLControl'
HTMLControl.HtmlText
By this, entire HTML code with your collection of repeated items will be in the desired format.
Hope this helps