I am currently on Free version thinking on getting the full version but it seems when working on a large project you spend more time searching for simple things then using them, so I am currious if there is a better way to organize within the editor itself.
For example, I have textures for buildings, trees, ground/terrain, objects, chars, mobs, etc, each one in the windows file system I have organized into there own place for easy access outside of unity, but when I go in for example unity terrain to pain the terrain, add a texture, it ignores my dir layout and just shows every texture in the entire project on one area, then have to open windows explorer, find the file in the right location, get the file name, go back into unity and seach that list for that asset I want.
Is there a way inside unity to make it list things not project wide but location wise, so I can click to add a texture to the terrain, and have a option to select by location, so I can click on Assets/Terrain/Textures/Grass for example instead of everything listed from all dirs/folders in the assets only, like a tabed option or something to make orgainization easier within the editor itself?
Pretty much in windows everything is easy to find since they all have there place in there own folder/dir.
When I jump into for example selecting a texture for a mesh or terrain, i am greated with every file from every dir.
I have my assets organized in windows, by groups and objects, for example, my terrain assets as under \Assets\TerrainAssets\Maps\Mountains<files> and only mountain textures are located there, no water, trees, grass, sand, or char textures, items, ect, just mountains.
When I load the assets to add one to a object like the terrain, I have to scroll threw each one alphabetacaly from all folders, so all my chars, items, buildings, objects, terrains, trees, bushes, etc all in one area.
If this was a small group of things it might not be to bad, but If I do a Folders property in windows for the assets alone that are just the textures, my project has 16,063 textures, so if I want one mountain texture, it tends to be a pain 
that would be quite handy to be able to select from folders or tags or other…
but one way would be to name the textures with custom prefix or suffix, so you know what to search:
(in water folder)
dw_water1.jpg
dw_waves234.jpg
(in sand folder)
ds_somegroundtex1.jpg
ds_dirtsand123123.png
so then in the texture selection you search with prefix:
dw_
(and it lists only Diffuse Water textures… or use any other prefix letters)
**edit:
Actually searching by label works in texture selection,
just add labels to your textures (in project window) then search for: l:water