Whilst you’re correct that ICAM isn’t commonly used in Europe (by comparison to SE Asia & Australia) it is only a methodical approach like many others. If you’re proficient in gathering evidence, organising that evidence to establish a breadth of possible factors and able to draw rational conclusions, and at the end assign proportionate actions... you’d possibly be paying a fair bit of money to either repeat what you already know with a new format or worse to be driven by a proprietary product with all sorts of outlandish “silver bullet” claims. Using a “Why Tree” would be amongst the most common and you shouldn’t need a full course for that if already used to ICAM. If you want to pm me I can send you an example that I use.