Arrow on the chart.

 
Hello. How to do that after opening the buy position under the candle, an upward arrow will be drawn, and the other way around in the sell position?
 
Lomcio 99: Hello. How to do that after opening the buy position under the candle, an upward arrow will be drawn, and the other way around in the sell position?

Not enough information to be able to answer you.

  • Provide screenshots.
  • Provide information about the indicator in use.
  • Provide source code sample of your attempt.
  • Explain in detail what you want to achieve
  • Explain what your code is doing (or not doing) that you want to change.
 
The condition is simple:
Opening a position = drawing a candle at the same time. I don't need anything else
 
Lomcio 99: I don't need anything else

MT4: Learn to code it.
MT5: Begin learning to code it.

If you don't learn MQL4/5, there is no common language for us to communicate. If we tell you what you need, you can't code it. If we give you the code, you don't know how to integrate it into your code.

or pay (Freelance) someone to code it. Top of every page is the link Freelance.
          Hiring to write script - General - MQL5 programming forum 2019.08.21

We're not going to code it for you (although it could happen if you are lucky or the problem is interesting.) We are willing to help you when you post your attempt (using CODE button) and state the nature of your problem.
          No free help 2017.04.21

 
Lomcio 99: The condition is simple: Opening a position = drawing a candle at the same time. I don't need anything else

That is not simple. That is incomplete and much more complex than what you seem to think! If it were simple, then anyone (including yourself) would be able to do it.

Forum on trading, automated trading systems and testing trading strategies

Is it easy (or difficult) to …?

Fernando Carreiro, 2017.08.30 21:43

This post could be considered a “rant”, but I would like to take the opportunity to relay to those that ask similar questions, the difficulty involved in answering such a simple query – “Is it is easy (or difficult) to …?”

  • “Easy” would imply that anyone can do it, but that is obviously not the case.
  • “Easy” depends on the ability, skill, knowledge and experience of the one that is tasked to do it.
  • That ability, skill, knowledge and experience took time to establish and it had a cost, and if you sum it all up, it can be quite high.
  • So, “easy” means that if you don’t know how to do it yourself (or not able to do it yourself), then you will have to “compensate” someone else to do it for you.
  • You will be “compensating” him or her for all the effort and cost that went into acquiring the ability, skill, knowledge and experience and NOT for the actual time spent carrying out the task.

So, even if the task is just changing one line of code; remember that you are “compensating” the person for his knowledge and skills and not for just one line of code.

The same applies to those that request for something “simple” to be done for free. It is NEVER “simple”. If it were that “simple” then you would be able to do it yourself.

So, respect the hard work and effort the coder went through to gain his skills and knowledge and “compensate” him/her for it. Wanting it for free is being totally disrespectful!

PS! In conclusion, learn to use the Freelance Jobs section and recognise and respect those more skilled, knowledgeable and experienced than you!

EDIT: Please note that I use the term "compensation" and not "payment", because there are many ways to "compensate" for work done. Sometimes a coder will be "compensated" with gained or shared knowledge instead of money, or by an exchange of ideas or other things. It is not always about the money but it is about the "compensation"!