PNG multipets work by setting up the specifci pet in the browser source itself. In order to configure them its necessary to open the browser source in notepad and change the pet that it listens to as shown below

You need to add between the quotes the name of the type of pet it will be. If empty, it reads all of them. The other valid values are the following 3

• default
• ai
• soundboard

When edited it will look something like this

Remember to save afterwards! Then just add the browser source to obs or streamlabs as usual.