IB have a brilliant platform, but their charts are crap when it comes to drawing lines and boxes. I have sent in numerous requests but you are just wasting your time, as retail traders are like drops in the ocean to them.Ninjatrader is much better, or even Multicharts, but I am used to IB now so I don't really bother with others that much. If you want to get some real practice offline, then download Ninjatrader, link it to IB data feed, and use the playback feature to play the market back to whatever time you want, as far as I know you can even place trades on the playback, but you will have to test that yourself.
You do not want to draw too many lines on 1 chart as it will make the chart messy. If you have 2 or 3 monitors, then best to put the individual charts up with no "share trend lines among charts", as you will be checking all three charts when trading and will know where your major S&R lines are.
It is always harder trading on laptop, or with just 1 monitor, but if that is what you have then you have to make use of it and trade whichever setup works best for you. I use laptop at the moment.
Back to 3 chart Spy.
Trend is down, clearly identified by the down line on 30 min and 5 min.
Low risk trade would be to short near high of down trendline. You must realise that the 30 min bar and 5 min bar would be blue on these charts if live, so looking back to try get exact detail is hard, hence use Ninjatrader if you want to do more of this, but practice live will be better of course.
The 5 sec is up, but the TICK has not followed thru and volume is reducing. Might be bad time to go long, and we are also in middle of 5 min range, which can be more risky trading than at range extremes, but, as the trend is down, we are primarily looking for shorts over longs, as long as the 30 min does not close above previous bars high.
There is a lot to it, and it is very hard to explain how you must react to price changes at certain levels, but the only way to learn is by experience, no short cuts unfortunately, even though most will have you believe so, especially if you are paying them some money.
To be honest, if you are trading full time, you need 3 to 4 monitors, as there are a few more things like Booktrader and Time & Sales that also provide clues as to when the market might be starting to reverse, but you can not just explain it to someone, you have to be in front of the 4 monitors, have them setup so that you can scan them correctly in the right order, and I do believe that your setup is as important as your risk control, even more so, as bad entries cost you money real quickly, and good entries make you money real quickly, which is what you need to perfect. The better you get at entries, the better you get at reducing your risk per trade.
Hope I am not putting you off