Add Custom Blocklist!

I am very big on using custom domain blocking along with merging with open source lists. Just today I found 23 of them! I easily implement them on my personal devices but I have a network That contains up to 15 devices including guests. Would really be great if there is a way to add custom lists along side the lists we already can choose from!

BTW: My network is more faster and more safe from advertisements, trackers, malware, malvertisements, and my family cant be more happier. I am a happy subscriber!