Halve and double loop commands

Pardon my ignorance as I am new to CrossDJ.
I did a search trying to find out more about the halve and double loop commands but I did not find adescription.
I mean I know what halve and double loop commands should be but where are they?
Is there a button that i should be seeing in the interface?
Or, is it just refer to new MIDI commands available and maplable to a controller.
In other software I have the commands available in the interface as button.
I did downloaded and verified that I am using CrossDJ 2.3.0
Please enlight me.
I did a search trying to find out more about the halve and double loop commands but I did not find adescription.
I mean I know what halve and double loop commands should be but where are they?
Is there a button that i should be seeing in the interface?
Or, is it just refer to new MIDI commands available and maplable to a controller.
In other software I have the commands available in the interface as button.
I did downloaded and verified that I am using CrossDJ 2.3.0
Please enlight me.