Connecting to remote host via ssh tunnel

Hello! 

I am using Professional Version of PyCharm 2020.1.3 

I have two remote hosts and my local computer: let it be host_1 and host_2 

For the first time, I used PyCharm remote interpreter via SSH connection to host_1, and it worked really cool: remote deployment, running all scripts on host_1 and etc.

For now, I need to copy my project to the host_2 and run some code on that machine (to use all the GPUs for training for that I have access and to run some experiments on that machine). I want to do it in the same way, as at the host_1, but the problem is that connection to host_2 is only available through the proxy tunnel of host_1 (host_2 is in the internal web). 

When I'm trying to connect to host_2 from cmd, using config and ProxyCommand, it goes well. But when I tried to do it with PyCharm, a strange thing happens: as you can see on the screenshot, I wrote the same host as in the config and tried to connect. PyCharm is seeing it, otherwise, it would bring an error ("no such hostname" or something like that). But the connection lasts endlessly: no error, no connection. 

I don't know if I did everything correctly.

If you have any suggestions or ways to correct it, it will be a pleasure to see) 

Thanks!