Kili Technology allows to easily draw bounding boxes. It is a rectangle to position on the object, the first click will determine the upper-left vertex of the rectangle, and the second click the lower-right vertex.
It is also always possible to change the class of an annotation with a right click, selecting "Change class", and then selecting the new class of the object. If the task is multi-classification, this operation will allow you to select all the categories for this annotation : you can delete the previous class but also just add one or more other classes.
Bounding box can be nested (see nested classification)) with all classification tasks, to build refined object classification.
Simple choice. See classification section.
Multiple choice. See classification section
Single choice dropdown. See classification section
Multiple choice dropdown. See classification section
Shortcuts are provided to help you annotate quickly :