If you click to select a checkbox, the contextual ribbon tab Object appears automatically.
However, you can only apply some general options for objects here:
▪New object: This option allows you to insert a new object into the document and different object types are available.
▪AutoShape: This option allows you to insert a new AutoShape into the document.
▪Lines: This option allows you to insert simple lines, curves and also connectors (which you can "dock" to the text frame) into the document.
▪Link text frames: This option is only possible for text frames. For more information, see Text frames.
▪Text wrapping: This option determines how the body text that surrounds the object should behave. For more information, see Object properties, Layout tab.
▪Bring to front, Send to back: These options are only available for checkbox frames. They allow you to arrange the order of overlapping object frames. For more information, see Changing the order of frames.
▪Align objects: This option is only available for checkbox frames. It allows you to align or evenly distribute two or more object frames. For more information, see Aligning and distributing frames.
▪Group: This option is only available for checkbox frames. It allows you to combine several selected objects into one unit, which can then be treated like a single object. For more information, see Grouping frames.
▪Duplicate: This option creates an immediate copy of the selected object.
▪Convert: This option converts a checkbox included in the body text into a checkbox frame and vice versa.
▪Width, Height: These options change the size of the object. For more information, see Changing the size and margins of objects.