* '''Merge''' Merge the selected paths (at least two) into one path. Note the starting node of path ''i'' is merged to the endpoint of path ''i+1''
* '''Specify Radius''' Specify a constant radius to be applied to all the nodes of selected path(s). This setting only applies to unfitted paths and overrides any existing values.
* '''Ramer-Douglas-Peuker Downsampling''' Given an inputted maximum permitted distance between nodes, perform [https://en.wikipedia.org/wiki/Ramer%E2%80%93Douglas%E2%80%93Peucker_algorithm Ramer-Douglas-Peucker] downsampling on the selected path(s). N.B.:
**This operation cannot be undone.
** Paths can only be downsampled: Smaller inter-node distances will not be interpolated.
** It is advised to choose a value at least twice the smallest voxel separation.