SureAI

Attention - spoilers!

[+] My question

At the end of the quest "Dark Chambers of our Mind" Tharael committed suicide because at the start of the Rhalata quest line I agreed with him to kill Qalian. I read that there is a way to save him if you were against killing Qalian back at the start of quest line. Please, is there an option to save him somehow using some console commands? The decision about Qalian was made many-many levels and game time ago, so I don't want to replay all this time...

Oh, I accidentally found it on reddit: you can use

[+] console command

"set_00E_FS_NQR02_SparedQalian to 1" before final talk with Tharael

hello Sabikd
Attention, console commands can cause errors, including those that occur later and may be irreparable.
(especially those that modify any quest)
This can be very individual, so we don't mention cheats here without testing them individually first.
So be careful with it and save the game before (manual save).

Edit: I put your solution into the spoiler at your post.