fix my vim config, tmux, git, plugins -- 2

Hi, this seems trivial but a taunting task whenever I try to fix some of my issues. my issues are; 1. tmux status bar; instead of refreshing, it keeps adding a new line on top of each new line. 2. powerline or airline status. This is something to to do with the fonts (maybe #1 too) 3. buffer update and workspace -- two stepping points; I want to change the relative path to the current working directory and update the buffer so that the pwd is accurately displayed ( [login to view URL]) 4. lastly, I want to install git-fugitive and use it as I do with powershell. I got small issues that are coming down to #4 using git as graphically as possible in vim. for #1, this q&a applys ([login to view URL]) my os : Centos 7, Ubuntu 18 I use hyper, mobaxterm and powershell as my terminal editors many of other prerequisites are installed my maximum budget is usd20.