Change Schematic Sheet Size Altium

Altium sheet size designer set Altium sheet error entries use electrical sheets saying getting am but How to set the sheet size in altium designer?

How to set the sheet size in Altium Designer? - Electrical Engineering

How to set the sheet size in Altium Designer? - Electrical Engineering

schematics - Use sheet entries on Altium - Electrical Engineering Stack

schematics - Use sheet entries on Altium - Electrical Engineering Stack

How to set the sheet size in Altium Designer? - Electrical Engineering

How to set the sheet size in Altium Designer? - Electrical Engineering