We can use looping to accomplish such workflows. Should there be N number of qtrees OR N number of nfs exports in the volume; we can use loops to find the corresponding qtrese in the volume OR nfs exports in the volume.
Basically in the loop we need to use a finder to find the qtrees or nfs exports in that particular volume.
Then use "Remove Qtree" Or " Remove export" command.
Hope this helps!!
Re: "Remove a Volume and its shares and exports" workflow WFA 2.0 - export modification