how to create select box in classic extjs 6

I'm starting my adventure with ExtJS, currently I'm using version 6.0.2 (Classic). I have to create specific kind of form as shown in link below :

Picture of form

I think it is a kind of Html's Select Box with multiple selection option. My question is how can I create it in Ext JS? Is it possible to use ComboBox or other Ext component to create such a form? (I've read Sench docs and I didn't find Selection Box, whereas MultiSelector has deprecated config MultiSelect).

Thanks in advance for helps.