Hello @emolotel
If you are talking about the summary field in the form, only the input fields (single line text, date, password, calculated fields, dropdown fields, etc.) can be included in the summary field.
However, if you are referring to the summary in the thank you page, you should enter the fields’ tags by separated. For example, assuming you want to include only the fields: fieldname1 and fieldname2 with their labels in bold and values in italic with a text between them, the shorcode for results in the thank you page, can be inserted as follows:
[CP_CALCULATED_FIELDS_RESULT]
<p><b><%fieldname1_label%></b>: <i><%fieldname1_value%></i></p>
<p>Your custom text here</p>
<p><b><%fieldname2_label%></b>: <i><%fieldname2_value%></i></p>
[/CP_CALCULATED_FIELDS_RESULT]
Best regards.