Anyone know a trick to allow copy & paste for messages using Apple devices?

I have never been able to copy and paste in chat, nor the emails. Heling a friend with a tutorial and they are not tech savvy… really need to do a copy & paste email inside of CW. I’ve heard of some with Androids/Microsoft based laptops being able to, but none of our Apple devices allow it. Hoping someone has figured out the trick to be able to!