I have a weeping fig growing outside, when is the best time to trim to shape, it is probably 3-4 metres high
By Rogerrhd
Spain 
The details are in the question apart from I live in Spain !
8 Mar, 2009
According to the A-Z Encyclopedia of Garden Plants Ficus Benjamina should be pruned in late Winter, I presume that would apply to you in Spain also. The pruning system is group 1 where the smaller side shoots are taken off close to the main stems which would prevent crossing branches and crouding. Hope this is of some help.
8 Mar, 2009