In Slicer 4.10.2, after a segmentation is added to 3D volume, and then adding a segment, say using Draw tube effect, then when clicking on "Edit’ button, the delete button besides “Fiducial Placement:” label (which allows removal of last placed point, or removal of all markups), becomes enabled. In Slicer 4.11, the delete button however doesn’t become enabled until one of the following actions take place:
- cursor is moved towards proximity of a markup
- another markup is added to the segment
- position of existing markup is modified