Vaya a Formato ▸ Organizar ▸ Enviar al fondo (LibreOfficeDev Writer, %[officename] Calc).
Vaya a Forma ▸ Organizar ▸ Enviar al fondo (LibreOfficeDev Draw).
⇧⌘-Mayús + Ctrl + signo de resta (LibreOfficeDev Impress, LibreOfficeDev Draw)
Open context menu - choose Arrange - Send to Back (LibreOfficeDev Impress).