I'm trying to find some sort of two-sides multiple(always opened) boxes with search and angular material design but I can't find anything. I can achieve the same functionality, but the multiple dropdown select box gets always folded when I do backdrop click.
Should I write it on pure angular or find a way to do this with Angular Material?
Here is a link which almost fully represents functionality I want to achieve but without search and angular material: https://alexklibisz.github.io/angular-dual-multiselect-directive/