Hi Raghib
Thank you for your feedback, I found the Area light but there's a matter of orientation: i saw a tutorial where when you select a light there's a yellow point to move it, the 3 axis and 3 white arcs to orient it as you need on the 3 axis, when I select a light in my project there's just one blue arc to turn the light on Z axis, so, for the Area light as all my spots light, I just be able to light the ground but not the wall ... I don't know if I have to select something to be able to or if because it's the free trial version of the soft ?... I plan to buy the commercial one but in a couple of months with my new computer...
Thank you for your"light" on my matter
Best
Gilles