How do I access my clipboard on an iPhone 7 Plus as a senior?

The clipboard on iPhone, let's you save/copy content from say an email or text message, then paste it somewhere else. You can't open the clipboard. You can paste the last item you saved to the clipboard. And when you save something to the clipboard, it overwrites whatever was on the clipboard previously.

Here's an example of how it works:

1. Open a text message and place your finger on the message to copy the content of the messages, and you choose copy
2. Open the Notes app and choose to write a new note, then press on the screen and the option to paste what you just copied will appear and when you tap paste, the content you copied from a text message will be pasted into the note.

Please feel free to come back if this doesn't adequately answer your question.

The clipboard is part of the cut-and-paste function.

Select, cut, copy, and paste text on iPhone - Apple Support

Cut moves the selected text to the clipboard, while copy copies the text to the clipboard.

Paste moves the contents of the clipboard to the location specified.

(There isn’t a way to view the contents of the clipboard directly.)

"How do I access my clipboard on an iPhone 7 Plus as a senior?: I would like to know how to access my clipboard I have an Apple 7+ mobile phone I’m a senior so I don’t make it too complicated thank you"

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Using a Clipboard:

A. Select and Copy:

One you select it, it will be highlighted. When highlighted, use what it offers. Only the last copied item would be able to be pasted. If you need to copy a lot, then you'll have to hold your finger down on the screen and select something like "Copy". Then, once all is copied, tap in a textbox and select "Paste".

B. Pasting Text in Number Boxes:

You Can't. A textbox that only allows for numbers (such as login PIN), will not allow for charters that are letters or alphanumeric. It will not be able to used for PINs, and you'll have to paste it elsewhere

C. Use the Mail App:

Perhaps in the Mail app. The Mail app is a great place the use Copy & Paste. It is not officially a clipboard, but it allows for Copy & Paste.

I would add that it functions this way for security purposes.