The phrase "arranged simply" is correct and usable in written English.
It can be used to describe something that is organized or structured in a straightforward or uncomplicated manner.
Example: "The documents were arranged simply on the table, making it easy for everyone to find what they needed."
Alternatives: "organized clearly" or "structured plainly."
When individual pixels are arranged simply in a single row, the detector is referred to as a linear array.
Small guesthouses are springing up all over the country, and a room and local fare can usually be arranged – simply ask at the island office.
The studio has white walls, a skylight, and a small window with shutters, and inside it was arranged simply: a work table with paintbrushes and three rulers; a couple of chairs.
All that is nothing, though, next to the food, arranged simply in plates small and large, which are reshuffled every few weeks, rewarding even devoted regulars with something new and, above all, fresh.
The floors are arranged simply: three bands of cellular rooms are separated by two long corridors, with treatment rooms along each elevation and service spaces down the central spine.
The process whereby an American theater song turns into jazz fascinates Mr. Charlap; he's a student of these transformations, and has done it himself, with songs like George Gershwin and Irving Caesar's "I Was So Young (You Were So Beautiful)," which came next in the set, arranged simply as a ballad with brushed drums.
This can be arranged quite simply.
They are also a visual delight; many are artfully (but simply) arranged on rectangular green glass plates, only slightly larger than the food, making for a cheery, unpretentious presentation.
Rather than spending 3 hours sorting through stuff and then arranging it, simply spend a small amount of time (say 15 minutes) straightening up your room.
There is a strict vertical hierarchy such that for connected nodes the higher node is a subgroup of the lower node, whilst the horizontal arrangement is arbitrary and simply arranged to provide the least number of crossing lines for ease of readability.
But while Republicans simply arranged for unwanted nominees to disappear forever into the no-exit in-box of the Judiciary Committee, Democrats have been obliged to flourish the ultimate weapon: the filibuster.
