SOBI2... stuck - Joomla! Forum - community, help and support

hey everyone, sobi 99.9% of want stuck on 1 section can't bypass. when client enters in entry posted on website allow post in main catagories , not sub catagories have created. have manually this. how can allow user enter in entry subcatagories? please help...this last section need overcome.

thanks..

so installed sobi2 , when people wants insert entry multiple categories can't. should little more specific. have many categories , more sub-categories. want them have possibility add entry lowest sub-category, , not main category.