Screen size above 1

hello i have ue 5.4 an i have similar problems , the default values for the lod screen size are up to 1 : LOD0 screen size 1.7 , LOD1 screen size 1.4 etc but when i unclick (autocalculate LOD distance) automatily the values change between 1-0 and i cant change it up to 1 , im working with a huge asset that eventually takes up a large part of the screen and i want to adjust the screen size up to 1 how i can ??