SF Related List View Hack
In case you want to expend the related list view by adding more fields and it’s exceeded the limit of 10 fields, you can use the following steps to extend it anyway:
In edit layout page > Related list properties
Click CTRL + SHIFT + J in the screen,
copy the following commend and insert the number of columns you want instead of the X sign:
VFEditor.MAX_RELATED_LIST_COLUMNS = x
and click enter, then close the window.
Then add the field to the list and click OK.