Thanks a lot,
Layout looks strange, we will be working on it.
Yes, label is label_name.
If you want detect persons and sport balls, you need type "person sports_ball" only.
Also you may assign some attributes for labels. Attribute examples: age or gender (for person), type or model (for car) etc. I will give some examples of valid strings below:

# number, select, radio, checkbox, text - is input types
# You also need specify each attribute type (mutable [~] or immutable [@]). Mutable attributes may be changed frame by frame (in the case of tracked objects)
# For number input type, attribute values are min, max and step.
# For radio and select - are possible values
# For checkbox and text - are default attribute value (true, false) for checkbox and ("any text") for text
person @number=age:1,100,1 @select=gender:man,woman @radio=hair:long,short,curly,straight
car ~checkbox=parked:true
face @text=description:"default description"

Of course, you may create any number of labels and attributes for task:

person @number=age:1,100,1 @select=gender:man,woman @radio=hair:long,short,curly,straight car ~checkbox=parked:true face @text=description:"default description"

Also you may see help about it if you hover cursor to labels string.
Or you can see it in HTML
Good luck

Is there any documentation? #1

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