To fix it is easy way
Open mod folder KHA~/Config/XUi
Windows.xml
Go to >
<grid depth="10" name="inventory" rows="1" cols="8" pos="3,-3" cell_width="75" cell_height="75" controller="Toolbelt" repeat_content="true">
and u have COLS = 8
Change COLS = 8 to COLS = 10
or CTRL+C + CTRL+V
<grid depth="10" name="inventory" rows="1" cols="10" pos="3,-3" cell_width="75" cell_height="75" controller="Toolbelt" repeat_content="true">
KhaineGB
Ty for extra mod, because i only use it.