If you want to add an image on the button, you need to activate the quick button image option.

Open ‘Preference’ under the ‘File’ tab.

Select Use Image option

Add a Page Item and Image

Step 1 Select the button.
Step 2 Search the item.
Step 3 Click ‘Add Page Item’ button.
Step 4 Click ‘Change Image’ button. The best image size is 165 × 135 pixel.

After adding the item and assign the image.