How to enable spell-check with Grammarous by default?

[HarishVangala]

LanguageTool is powerful enough to handle grammar and spelling simultaneously.

However, I find spell-check disabled by default in vim-grammarous. All that I find in documentation is this:
how-do-i-use-this-plugin-with-vims-spelllang
This looks only like an option for the spell check which should first be enabled.

How to enable spell check by default?

Update:
I find this option:
let g:grammarous#enable_spell_check=1, and it works! But the annoying problem is that

• Navigation doesn't include spelling-errors
• No suggestions are shown for spelling errors
• There is no way I can distinguish between errors of spelling & grammar (for e.g. like the traditional Green and Red zig-zag lines)

Another issue: Can I have the quickfix-window open all the time? Its annoying to see it getting open and closed. I would like to close it manually once everything is fixed!

[rhysd]

Navigation can't consider Vim's spell check because plugin can't obtain the place of spell error detected by Vim's spell check. I guess LanguageTool has some spell check rules. Please try to use them instead of Vim's spell check.

[HarishVangala]

@rhysd Oh thanks, I got it. Using the below combination works perfectly with spell-check.

let g:grammarous#use_vim_spelllang = 0
let g:grammarous#enable_spell_check = 1

Could you also answer the remaining two questions?

1. Can I have the quick-fix window open all the time? (until :GrammarousReset)
   It is a bit annoying that the window pops and closes by itself several times.
2. How can I distinguish between a spell-error and a grammar-error? Can I change the color?

You can then go ahead closing this issue.

[amandeepgautam]

@rhysd Please update the documentation: https://github.com/rhysd/vim-grammarous#how-do-i-use-this-plugin-with-vims-spelllang

The above solution is much more intuitive to use than the one suggested in the FAQ (I could never figure out how to use it).