Adding new effects for skills.

Hello. I was recently reviewing the skill tree and wanted to slightly enhance the central perks for each faction. I only have a basic understanding of scripting, but I would like to add something new to the game. For example: * For the "Unrelenting Force" skill, using scripts, add, in addition to increasing morale, a double attack for both melee and ranged units. * For the "Scream of Terror" skill, in addition to the morale penalty, also add the "Grief" spell, which would be constantly applied to all enemy creatures, and so on. I want to create a small mod for H5.5. I would be very grateful if someone could help me with this.