add many orders what tool to use and free

[hack4love]

i mean pending orders
for ex
my main balance 1 btc

i want set order like this

if eth price down to 0.008  buy and  use my full 1 btc

if zec  price down to 0.0007  buy    use my full 1 btc 

if dash  price down to 0.0005  buy    use my full 1 btc


now i have 3  pending orders

if the eth go down to price i set the order will execute and will buy with my 1 btc . eth at price 0.008  and two orders for zec and dash will deleted

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[npredtorch]

I think what you're up to is possible if you use a "trading bot".
I personally haven't tried any bot on the market but I know some of it are announced here in bitcointalk and have some plenty of reviews.

C.A.T - https://bitcointalk.org/index.php?topic=507103.0
Gunbot - https://bitcointalk.org/index.php?topic=1715214.0
BTCTradeBot - https://bitcointalk.org/index.php?topic=2128942.0

Other topic that might help you.
Great empire of ⚉ BOTS  ⚉ - https://bitcointalk.org/index.php?topic=1944274.0

[hugeblack]

In other words, you are looking for "Trading bots."

Trading bots are computer programs that use various indicators to recognize trends and automatically execute trades.

After you do a thorough search you can find the best bot, but I recommend you:
 
 - Gunbot: Connects with the most popular trading platforms and comes with eight strategies
 - Gekko: Free & open source project.
 - Haasbot: best alt of Gunbot.

I do not advise you to look at the price of trading or relying on numbers, Follow the news and make a strategy to predict whether the price will rise or fall.