Description of problem: You can delete objects and their fields by clicking a trash icon next to them. This icon should be located to the right of the item to be deleted (usually, there is a checkbox for selecting an item on the left, not a trash icon for deleting it). We also need a better icon than the trash can.
Corrected in: master: https://github.com/droolsjbpm/kie-wb-common/commit/c6df8408db6b4ea9721deb8ef984c79a44fe453d 6.0.x: https://github.com/droolsjbpm/kie-wb-common/commit/3d56014d3b58cdfe0fceb771f12647bfb92fdd89