![]() ![]() ![]() You can copy the block by either pressing the copy shortcut for your platform (Ctrl+C for Windows/Linux, ⌘C for macOS). You can also use the backpack to transfer blocks between projects, or download blocks as images that you can share with others. Like the designer, it supports copying and pasting blocks. The blocks editor is where you provide the behavior for your app. ![]() These new names are also subsituted into the copied blocks code, if any. For example, if you copy a component named ResetButton, the first copy will be called ResetButton1, the second will be called ResetButton2, and so forth. The renaming algorithm works by either adding a numeric suffix to the name, or by incrementing the numeric suffix of the name until the collision is resolved. It does this by computing a fresh name for each colliding name. When pasting, App Inventor will rename the pasted components if there is a collision with existing components in the project. App Inventor will skip pasting the blocks if the shift key is held. If you would prefer to only paste the component without copying its behavior, hold the shift key while pressing the paste key combination. When copying and pasting components, the default behavior is to copy both the design as well as the behavior (i.e., the blocks). Once you have copied components to the clipboard, you can press the paste shortcut key (Ctrl+V on Windows/Linux, ⌘V on macOS) to paste them. You can also use the Cut shortcut (Ctrl+X on Windows/Linux, ⌘X on macOS) to copy elements to the clipboard and immediately delete them, so that they can be pasted elsewhere. This places the contents of the selection onto your system’s clipboard. Once you have selected one or more elements, use the standard keyboard shortcut for your platform to copy them (Ctrl+C on Windows/Linux, ⌘C on macOS). Changing a property in this mode will change it for all of the selected components. When you select multiple components, the properties panel will update to only show common properties among the selected components. ![]() This feature is sometimes referred to in App Inventor as multiselect. Starting with release nb182, you can select multiple components by holding a platform specific key (Ctrl on Windows/Linux, Command on macOS) and clicking on additional components. You select components by clicking on them. You can customize components by changing their properties in the Properties panel to the right of the designer. You can add components by dragging them in from the Palette panel to the left of the designer. Your app design is made up of one or more components in a tree structure that starts at the Screen. This document explains this functionality. Beginning with version nb184, App Inventor has included the capability to cut, copy, and paste parts of your app design. ![]()
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