"Max number of Users with this Role Allowed on a Project" for Project leader Role from 1 to many

Hi,

When creating an initiative the default Project Leader (we re-named it to Project Manager) role got create where the "Max number of Users with this Role Allowed on a Project" is 1.Is it possible to change the maximum number to more than 1. Please check the image to get a better understanding. 

Note: As per the Team member (system default) role we are able to change the "Max number of Users with this Role Allowed on a Project" from 1 to many.So similarly is it possible for the Project Leader role.

Regards

Himansu