Yes, you can link to a task in a calendar view in Odoo by creating a button that opens a form view for the selected task. You can do this by defining an action that opens the form view for the selected task. Here's an example code snippet in Python:

python

Copy code

action = {

    'type': 'ir.actions.act_window',

    'res_model': 'project.task',

    'view_mode': 'form',

    'target': 'current',

    'res_id': task.id,

}

return action

This code defines an action that opens the form view for the selected task with id task.id. You can then attach this action to a button in the calendar view and make the button visible when a task is selected.