Learn the basics on using MCMCglmm for meta-analysis
Introduction to MCMCglmm tutorial, available here: https://ourcodingclub.github.io/2018/01/31/mcmcglmm.html.
Before beginning this tutorial, you may like to learn a bit more about general linear models and mixed models, which you can find here https://ourcodingclub.github.io/2017/02/28/modelling.html and here https://ourcodingclub.github.io/2017/03/15/mixed-models.html.