You can move and rotate rooms, machines and decorations. Tap and hold the item you want to move and, once the arrow icon fills up, the item can be moved or rotated.

1.  First tap and hold the object you want to move. 
2. Once the object shows the rotation menu, you can drag it around freely as long as you don’t let go of it.
3.  Now simply drag and drop the object onto a cleared area. Note that when the object shows a red color, the location is invalid. 
4. If at any time your object is stuck behind another building, just tap and hold the hidden part of the object you want to select.
5. When you arrange your hospital always leave corridor space so your patients can reach every room!