BitShares Deposit/Withdraw Engine upgrade

The #BitShares user base is growing quickly and we have to prepare for many additional businesses and transfer providers that will join the ecosystem.

If you are familiar with the BitShares reference client you might get used on how to deposit, withdraw and send funds on- and off-chain, hereafter called the DW-Engine. But new users often struggle to understand how to use the DW-Engine and the result is many questions and complaints raised in the community channels.
Therefor I recommend to upgrade the DW-Engine and simplify all procedures as far as possible.

To begin with I would suggest to get rid of the separate "SEND" menu and merge the send and withdraw function in a single Menu.

Submenu

Deposit
Withdraw->choose between send and withdraw
Custom->Legacy DW-Engine provided by transfer providers, also for FIAT etc.

High-Level

Merge send and withdraw function
Guide the user through the process
Display only required fields and options

Mid-Level

Choose between deposit and withdraw or custom
Select a token
Enter amount
Choose between on/off-chain
Select transfer-provider (optional)
Enter recipient (send/withdraw)
Enter memo (send/withdraw)
Switch fee token (optional)
Custom service provider (custom/legacy DW engine)

Detail-Level

see process diagram

To make the DW-Engine smart enough a small database/table is required to host and maintain the required transfer-provider information. The table could be embedded in the client itself or if possible could be hosted on github repository for realtime updates(if approved by n devs).

Token
Name
Symbol
Provider
URL

I am not a developer nor a designer but I've created a couple of mockup screens for Deposit, Withdraw and Send as well as a process diagram to visualize how the procedures could be built to match the mockup screens.
This github issue is only for the DW-Engine, other visible mockup design elements or colors are not part of my suggestion.

DEPOSIT example