if you are using you could adjust the filters to select the tax year and module, then do a query, which will show only the returns with a specific condition

we have instructions here for client explorer https://profile.intuit.ca/support/en-ca/help-article/manage-client/query-client-explorer/L7Nbtlhcg_C...

and here for classic database we have an example there https://profile.intuit.ca/support/en-ca/help-article/customer-data/create-database-query-method-cont...

The field to use for non-resident in the Query is  T1Info.B[28]