I am using Print Designer to design print format I having lot of issues. How can I solve this?

Now I having a issue is I cant delete a element after the element inserted in designer(Dynamic text, Static text, table, image and etc…)I can’t even delete these objects using backspace. The backspace is not working and also up, down Arrow dragger is not working. how can I fix this. Whenever I gave a space to certain tables, dynamic text to align in a proper way ,its automatically decreasing the space between elements and making its own alignment. please implement some other tools to design efficiently, In table, my need is the Table Header Border will be in two different colors but in this print designer i cant create a table header with two colors because the whole header has same color. when I am deleting rows upper border the header border also deleting