modify an exception in a software I have, pretty easy just instead of clicking one by one I would like to have the option to do a select all just like whatsapp.

I need a freelancer to modify an exception in my personal software. Currently, it requires me to manually click each item one by one, which can be a time-consuming process. The desired modification is to implement a “select all” option that’s similar to the one found in Whatsapp. This would greatly expedite the selection process and enable me to select multiple items at once. The software must be compatible with Microsoft Excel and Adobe Photoshop upon completion, and any additional skills you can bring to the project would be appreciated. If you think you’re capable of making this change, I would love to hear more!