inside and outside addresess in same interface, please help

Hi,
I have question, i use mikrotik software on 86x platform,
I need to asign outside addresses to my customers (i got 510 ip’s),
at this time i use 10 outside addresses for all my customers (more than 400 + equipment ip’s),
all adresses NAT’ed,
todays network scheme:

outside adresses 1.1.1.1 - 1.1.1.10 > NAT > inside addresses 192.168.0.0 - 192.168.2.255 ( + 192.168.3.1 - 192.168.4.255 equipment ip’s)

i want to asign outside addreses directly to customers interfaces, e.g.: 2.2.2.1 - 2.2.3.254
and leave equipment local addresses in local network.

Is it possible to do without netmap ?

It is possible but the details of the possible options would depend on your network topology.

topology is simple, NAT > and lot of clients using few outside addresses (srcnat), do you can provide basic details of this configuration ?