Any list owned by you can be added as a key list metric on the dashboard.
If My Contacts is your default list, then this will be available as a key metric by default. You can remove this and/or add any other list metric to the dashboard.
Steps to add list to the dashboard
1. Tap on Add List
block in the Dashboard
2. Select the module from which you wish to add the list from.
3. Select the list and tap Save
To know more about what actions can be performed in Vtiger 360, please check this link