How to show custom module data in Subpanels

Hello all

There is one scenario i have one custom module “Vendor” and i am assigning task to vendor when any task completed for that Vendor then it should see in “Tasks” sub-panel in Vendor module but it’s not showing. How we can do that ?

Whats not showing? the sub panel?

Hello sir
No No Subpanel i showing because relationship is there. Just want to copy data.
what i want when i am assigning task to any vendor and if status of task is completed then that task goto History panel similarly that that task should go into “Vendor” Module “Tasks” Subpanel.
how can we do that ?