Board Thread:Site Questions/@comment-37163551-20190910110649

I wanted to ask someone about something but I don't know how to. On other wikis I have visited, writing a message is not like this. I browse this wiki on mobile. I enter a talk page and click 'Leave a Message'. A talk page opens and I write the message and post it. But it doesn't appear. A notification says that I should put 4 tilds but I don't know how to add them. Can anybody please help me? 