Tabtrader has proven to be an app that ease altcoins traders the night mare of jumping from one exchange site to another to monitor their altcoins ..by being a platform that bring all in one piece... 
For those still having difficulties in linking API to tab trader follow these steps accordingly..
After logging in to your exchanger..
1..Click settings..then click API
- Input your google authenticator code then Click add new..
3.At the next page when the new API displays first you copy ur API keys to safety
then still copy the secret key to safety too.
4..Now tick or turn on the first three boxes(readinfo, tradelimit, trade market) in some phones you might need to rotate your screen .. To see them.
5.Input your Google authenticator code......
6.click update
7.After that....Go Back to where you pasted your API and secret
keys(as done in number 3 above) copy them respectively and paste at tabtrader one after the order then SAVE.
If you have found this post helpful.. Resteem for other newbies to see..... and join the free telegram class,on altcoins trading..... 
https://t.me/joinchat/FB7W5EBFYx9gG18tGR33fw