Utilizing the snippets within the module can be plug and play. However if you want to make any adjustments on the snippets or configuration. It is advised to create an additional module (BizzomateChat_Extended for example), duplicate the snippets/functionality you want to adjust and change the references within your own duplicated snippet/logic.
. Using this method; when there is an update of the BizzomateChat module, your custom logic will not be overwritten.