Modifying an existing Expert Advisor to enhance its results (It sends Emails and SMS whenever I trade and I use it to send signals to email subscribers)

I have an expert advisor that I use to send emails to my subscribers whenever I trade. If I place a pending order, it sends an email looking like that:

New Trade Pending:
Buy-stop EURUSD @ 1.31050
Stop Loss: 1.29800
Take Profit: 0.00000

When I place a market order it also sends an email, when I close, the same and finally, when I cancel the trade also it does send an email. My problem is that sometimes I want to partially close orders at different levels and then do a close by. This is where the expert malfunctions.

What I need is a coherent system, that the users understand what I do and can do the same on their accounts.

The new order (pending or market), as well as the cancel trade works fine.

The modification of price of pending orders works only if I modify the entry price, I need it to send emails if I modify the Stop loss or the TP as well.

The close by and partial close confuse the receiver I need a fixing to this as well. 

I have attached the original EA for review and as a starting point.