When cutting and copying text from the editor, by default JetBrains Rider puts it as rich text to the clipboard, keeping the highlighting colors and font. You can disable copying or cutting the current line when there is no selection on the Advanced Settings page of the IDE settings Ctrl+Alt+S. Right-click the selection and choose Copy from the context menu. Set the caret anywhere in the line to copy the whole line, or make a selection to copy. For example, you can press Ctrl+W to elect the word at the caret and then extend the selection to containing logical blocks of code. There are a lot of ways to select text in the editor before copying or cutting. Right-click the selection and choose Cut from the context menu. Set the caret anywhere in the line to cut the whole line, or make a selection to cut. You can also cut, copy, and paste several ranges of text in different places with multiple carets. When pasting, you can optionally choose items from clipboard history and automatically apply formatting rules.
Apart from standard cut, copy, and paste operations, you can copy file paths, symbol references, and so on.