LG K51 / Reflect

Hi, I would like to know where I can find this menu, say, from Settings, without having to plug the USB cable in from my computer. I like to charge-only, but sometimes I want to be able to transfer files between the phone and the computer.

Any guidance? I have seen an LG page that tells me exactly how to do it, except the images of the icons are missing.

I DO have a way to get to this menu by plugging the phone in to charge off of the computer, then tap the message on the lock screen.

Cannot send reply to message sent from Dr office, pharmacy and emergency alerts. They are received but when responding yes or no, message of Not sent, tap to reply again. Have called LG and phone service, no help. Anyone have this problem?

Has anyone else experience temporary files on their MICRO SD HC 32 GB card
(metro by t mobile). one minute there's saved files, whether movies-music or documents will be present on the card. then in about a week all the files will disappear. When u are the only one using your phone (LG) u get worried. do those files dump after a while, where do they go. can they be retrieved? in the meantime, I uploaded all the files to my google drive with a monthly subscription.