Google's 3-D design program SketchUp does not have a command for easy editing of existing 3-D text. However, you can still edit 3-D text by treating it as you do other 3-D objects in SketchUp: as objects you can move, rotate, scale, shape, and add other objects to. Once you take this viewpoint and become familiar with the 3-D operations just mentioned, you'll understand how to edit 3-D text in SketchUp. This knowledge will allow you to format, delete, and replace text to meet your design needs.
Click the toolbar's "3-D Text" tool. SketchUp will display a dialogue box allowing you to type the text for the 3-D text object. You can also set the font, height and other characteristics of the text.
Type the text you want in the text box at the top of the dialogue box then click "Place" to close the dialogue box. SketchUp will create the 3-D text you typed and attach it to your mouse cursor.
Click the text to anchor it to the drawing canvas.
Right-click the text and click "Edit component." SketchUp will display a black wireframe box around the text's characters, this indicates the 3-D text component is in the editing state.
Triple-click any of the letters you typed then click the toolbar's "Move" command. You'll use this command to swap one character in the text with another character.
Click the selected letter then drag it a short distance away to a clear location on the canvas.
Click the mouse again to release the letter.
Triple-click another character as you did the first. Use instructions five through seven to move this character in the void left by the first character.
Use instructions five through seven to move the first character to the void left by the second character. This completes the letter swap, which is one way of editing 3-D text in SketchUp.
Click the toolbar's "3-D Text" command then type some text you'd like to see in 3-D.
Click the "Place" button to set the text object on the drawing canvas.
Right-click the text and click "Edit." This opens the text component for editing.
Click the toolbar's "Rectangle" tool then click on the drawing canvas below the first character in your 3-D text object. You'll use the rectangle to create underlining for the text which is a type of text editing.
Drag the mouse to the last character in the 3-D text then click again to complete the underlining rectangle.
Right-click the black wireframe box surrounding the text. Click "Close" to reseal the text with its underlining.