The skill comes with 5 effects, which one did you try to change?
Code:
운영자용 조화치료술_1 SKILL_OP_HARMONY_A READY
운영자용 조화치료술_2 SKILL_OP_HARMONY_A READY
운영자용 조화치료술_3 SKILL_OP_HARMONY_A READY
운영자용 조화치료술_4 SKILL_OP_HARMONY_A SHOT
운영자용 조화치료술_5 SKILL_OP_HARMONY_A ACT_S
So far I guess it is the "ACT_S" line, which is loading "system\ operator_harmony_effect.efp" effect. You can search for "harmony_a" to find all other skills.
If you want to use a different effect you can replace the efp enty to something else, but it is only using the replacement then.
You can also try to add a line "ACT_L" afterwards using "AT_LOOP", but you might need a "DEACT" too (see picture).
To run proper troubleshooting please deactivate all entries beside of one using "//", to see which line is causing the required effect.
To change the size of effect you can use two possibilities:
- colum 7: MOB_BASE, CHAR_BASE -> based on "target"; none = original size
- use "SCT_EFFECT_SCALE,1.0" to change the size of effect further, you can search your skilleffect file to find the right location
Let me know if you need more input.