Hi @Magda123, let me see if I can help out here!
If you want to copy the content of a text message in order to paste the content elsewhere, for example in a note, simply touch and hold the text message that you want to copy and choose the option "Copy message text". After this, you should be able to paste the text in the textbox of your choosing.
I hope that helped! Please let me know if I have misinterpreted your question in any way!
