can not suport highlight/vlidate the yaml/yml file
this case not offen happen, i don't know why ,may be UTF-8,may be windows file,may be have chinese character,may be GBK encoding file ,but this file encoding is UTF-8 ,but my other UTF-8 file with chinese charater is OK
see the attachment.
no column select function,indent use tab key is better.
In version 2.2.10 ,it have line number, but it look not very well . when increase font size by press ctrl key and scroll mouse middle scroll,the line number is very closer near the text content.