Well, there are some things; if you press / (I guess it’s the standard keybinding) you’ll open the advanced inventory interface;
Then, let’s say there is a pile of random things on your west (4 in the numpad).
To take things from this tile to your inventory, you can press 4, to select the west tile, then press the -> key (the right arrow but /not on the numpad/), to select the other side of the screen. Then, press I, to select your inventory as the place where the things will be transfered to. You can press the <- key to go back to the left side of the screen, and then press enter to take the items you want.
To sort everything in categories, press S (uppercase s) and select “Category”; this will organize everything in groups (Weapons, Tools, Clothing, etc.)
You can use “A” to select from all surrounding squares and “f” (lowercase f) to Find an specific item.
To find items in your field-of-view, press V (uppercase v), this will show everything around you; pressing TAB in the same screen will show all visible enemies. Here you can press “f” to find something specific.
(I guess my explanation turned out a bit convoluted, I’m sorry for my english 
But anyway, just press / , with a bit of practice the advanced inventory gets pretty useful to manage big piles of food and other things c: )
Also, to store things in cabinets and lockers and such, you can drop with D (uppercase d), and select the direction of the container!
As an example, to store something in a cabinet north of you, press D, then the 8 key in the numpad, and the inventory screen will open to select the items to be dropped.
To build things, you can press *, this will open the construction menu. But you’ll need a hammer and screwdriver to dissassemble things without "s"mashing them, and 2x4s and nails to build furniture.
If you have any doubts about the keybindings, you can open the help menu by pressing “?” and then “1”, this will open the list of commands, there are also some tips in the help menu!
I hope this was helpful!
