Great to hear you find the plugin useful (I'm the lead maintainer/developer behind the attendance plugin.)
As Emma mentions - it would definitely be a good idea to add a feature request into the github issues tracker for the plugin, but I'm not sure this is something I'd have time to implement as a volunteer - if you have internal development capabilities, pull requests are always welcome! - If you come from an organisation that has the budget to pay a developer to complete this work feel free to reach out privately and we can discuss rates etc (I work for the Moodle Partner Catalyst IT).
As Emma mentions - it would definitely be a good idea to add a feature request into the github issues tracker for the plugin, but I'm not sure this is something I'd have time to implement as a volunteer - if you have internal development capabilities, pull requests are always welcome! - If you come from an organisation that has the budget to pay a developer to complete this work feel free to reach out privately and we can discuss rates etc (I work for the Moodle Partner Catalyst IT).