There is a couple of issues with adding and deleting parameters. See video in JIRA. Issue discovered on MAC OS X. When adding parameter after changes in Type of previously added parameters the dialogue duplicates previously added parameters. Afterwards there is problem with deleting parameters.
Ted Jones <tejones> updated the status of jira TEIIDDES-2542 to Resolved
Matus Makovy <mmakovy> updated the status of jira TEIIDDES-2542 to Closed