The format has not top and bottom margins. , I have tried to personalize and set them with 3.0 cm at the top and 2.5 cm. at the bottom, and want to set it as predetermined, but it is impossible. Please help me!
Seems like your top and bottom margins are not visible on screen? Move the cursor to the top of the screen just below the ruler, a double arrow should appear, click and your margins should be visible. If you want to change your margins as default, in the
Page-setup dialog set your desired margins and click set as default at the bottom of the dialog. If I misunderstood the question just let us know.