ZFP-add a point measurement tool

For clinicians who read CT exams, they would usually use the point measurement tool to detect the single point HU value for understanding the lesion condition. However, customers upgraded from CWEB to ZFP, the tool no longer exists. ZFP only have circle ROI measurement and it is difficult to measure a single point for a small lesion, like nodule.

Suggest ZFP should add a point measurement tool to make doctors work more effectively.

Attached a screenshot of CWEB behavior. There is a tool for detecting HU value on CT exams.