Enter DF less than 4 person? + etc.

[Constrictor]

Is it be able to entering DF with less than 4 person? I really need this because there's like only 2 parties and they have no room for me ( they don't want to split either )

I remember from before you can do this but now it doesn't work. And way to so this with CE?

Also, Vac in DF doesn't work (Thai server) so does anyone know how to fix this?

Another monster outside DF can be Vac but not in DF D:

Thx in advance....

English isn't my primary language so please bear with me XD