Seems like they removed this option in this upgrade. SUCKS!
So how can we deal with this issue then? Anybody has a clue?
OP - You can control the page size issue while posting in slow or manual mode. Go to settings > slow and manual blog limits . Here you can set the size max. upto 4 MB .
You can not exceed the limits since scrapebox automates Internet Explorer and IE freeze on files more than 4 MB, during fast posting it automatically eliminate the blog urls having size more than 4MB.