Expert Advisor Expiration and licence key with timer

Hi Free Lancers,

   I have my EA and i need to add in functions which able to expired and timer.

The concept will be.

Expiration and Timer

1. Once the Expiration set like (ex. every 6 months), before the expiration expired in half month it will publish a timer until exact date reach.

2. The date must be able to edit for change by administrator.

3. Once exact date reach, the EA will full stop (disabled) and no any trading will be open.

4. while after expiration date, the Pop up box will remain on the window while waiting for the License key.

License Key 

1. Once EA will on Full stop (disabled), needed a license key open back for the EA to run again. (to be enter in the Pop up box).

2. Once the license key entered, the EA will run again as normal.

4. It should be able to run again for another (ex. 6 months- the date will base on original expiration set. ex.every 6 months).

2. Needed few types of key combination which able to set by administrator.