Sounds reasonable, I set this as an enhancement.

Drawings may be done for different purposes that make an individual grid necessary. Saving the grid settings also means to enter them - at the page properties dialog perhaps - and to have a default when a new document is created. So you would always start with 0.5cm, as long drawings do not have a page style.

Additionally to the grid settings it would be interesting to attach the scale values to the document (tdf#59068).

*** Bug 78034 has been marked as a duplicate of this bug. ***

Regina, you do create special grids instead of the inbuilt function. Does it make sense to add this option to the document? Meaning also to remove it from Tolls > Options > Draw > Grid into a new per-document dialog.

The grid settings are view-settings. They are already stored in the file in the config-items 'GridCoarseWidth', 'GridCoarseHeight', 'GridFineWidth', and 'GridFineHeight'. An existing document is initially shown with the grid, that is stored in its config-items. But when you turn grid off and then on again, the settings from Tools > Options are used.

I support to handle the grid per document. It makes sense to have it per document, because the needed grid depends highly on the size of the document. The settings in Tools > Options should only be the default for new documents.

(In reply to Regina Henschel from comment #5)
> The grid settings are view-settings. They are already stored in the file in
> the config-items 'GridCoarseWidth', 'GridCoarseHeight', 'GridFineWidth', and
> 'GridFineHeight'.
And also it the document had grid visible when saved.

> An existing document is initially shown with the grid,
> that is stored in its config-items.
Which may be no visible grid,

> that is stored in its config-items. But when you turn grid off and then on
> again, the settings from Tools > Options are used.
More complicated even.
Grid is set to invisible in Options. And the file you open does have grid visible. Now open options, tick Visible and the settings are applied immediately,

> I support to handle the grid per document. It makes sense to have it per
Me too.

> document, because the needed grid depends highly on the size of the
> document. The settings in Tools > Options should only be the default for new
> documents.
But Resolution and Subdivision are used to change the actual view of an document too.
So a good topic to think about a clear and usable solution.

(In reply to Regina Henschel from comment #5)
> The grid ... are already stored...

Looks rather like a bug. When the loading issue is solved we also need a place to review/modify the per-document option. I suggest the Page > Properties dialog, perhaps under Margins.

@Cor: The issue boils down to proper loading. That's why I changed the summary. The text "No clear distinction..." is misleading and would make me expect a suggestion when I was a developer.

@heiko: and the settings is Tools > Options > Draw > Grid are for what?
New default? Then how to handle the open document.
For the open document? Then how to handle default?
In any case, from the info and what I saw, to me the distinction is like spaghetti - with tomato sauce would you prefer ;)

(In reply to Cor Nouws from comment #9)
> ...settings is Tools > Options > Draw > Grid are for ... New default? 
> ... open document...

(In reply to Heiko Tietze from comment #7)
> ... When the loading issue is solved we also need a
> place to review/modify the per-document option. I suggest the Page >
> Properties dialog, perhaps under Margins.

Use T>O>D>G for new documents and take the values into Format > Page where it can be managed per document.

*** Bug 154201 has been marked as a duplicate of this bug. ***

Still an issue in:

Version: 7.6.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 5cd9de202765e243e41416802f3e4486b8a96f16
CPU threads: 8; OS: Linux 5.15; UI render: default; VCL: gtk3
Locale: en-AU (en_AU.UTF-8); UI: en-US
Calc: threaded