[eclipse-users] Use of REAL variables

Hello,

I would like to use some real variables but I'm not sure about how can I 
use them for optimisation.

Thus, given a variable like X :: 1.2..3.4

Is it possible to label it (I mean to do something like an indomain/1)?

Is it possible to use it in a constraint like X >= 2.3?

Thank you very much indeed for your help.
Cheers,
Daniel