When creating a task in a project, it would be nice to be able to specify somewhere default values for certain fields. In particular, for me, 90% of the tasks I create in my projects will be assigned to me. Having to manually selected "assigned to ME" for each new task makes task entry cumbersome for 90% of my tasks. If I could make this field default to ME, then I could change it in the rare event that it is for someone else. It may be useful for other fields to have default values as well, such as having the start date default to today. Other users may have other use cases for defaults. When creating a custom field, allow it to contain a default value as well.
To take it one step further, it may be useful to be able to set defaults by project or folder. For example, my folder for the projects for my employee Fred, could be set to default to Fred. etc.