Go on the Albums tab and click on the button New album. An album with the name Unknown album will appear.
To edit his name, just click on it and click where you want to save it. You album is now empty, please don't let him like that! He will not appear on your gallery until he is filled.
Constraints are a powerful way to sort your photos into albums. When there is no constraint, the album contain all your photos (note: to have something logical, PicsEngine don't fill albums when they don't have one constraint minimum.)
When you add a constraint, the photos are filtered. Photos that matche all the constraints are added to the album.
Imagine you have photos with tags family and italy. You want an album named Family in Italy. Add a constraint of Tags and select Each of these tags. In the text zone, insert family,italy. The comma separate the different tags.
Your album will contain all photos with the two tags family and italy.
Let's get further. Imagine that you have been 3 times in Italy with your family. You have photos with tags roma, tuscany or venice. You want this album have only the photos of your family in Italy in Roma or Tuscany. You don't want Venice photos. So, add a new constraint of Tag, select One of these tags. Type in the text zone roma,tuscany.
You'll have an album with two constraints, that will containt photos with the tags family and italy, and tuscany or roma.
You get it, possibilities are infinite. It exists other constraints like photos limit or date constraints (that require EXIF datas).