is two I-485 possible in different category at same time?

[vijay0101]

Hi guys,
my friend's situation is like this

1) EB2 is approved through spouse and I-485 is pending ....priority date for this is March 2005

in the mean time EB1- 140 is approved.


so my question is
1) can i apply another 485 while the 1st 485 is pending... ?

2) should I go ahed and apply for new 485 with EB1 any suggestion's are welcome.

Thanks