R C-R

Not there! Look in the Customize Tools window at the 5th row, column 2 position in the OP's second screenshot. The OP's screenshot shows the QR tool icon there not the icon for the rectangle tool. I am asking if any other Mac user ever sees the QR icon there.

I think so too, but my comment was about the icon for the QR Code Tool appearing in the customize window (5th row, column 2) in the OP's screenshot rather than the icon for the Rectangle Tool. On my Mac, I never see the QR icon in that position -- it is always the rectangle one. On your Mac do you ever see the QR one there?

Who is Chrisly & why are they asking you to post here? Regardless, there is no way to export a HEIF file you have opened to that format but you can export it to a different format like TIFF to see if it offers adequate image quality for whatever you are going to use it for.

It is a bit simplistic but you can think of the low frequency content as the stuff that does not change much pixel-to-pixel, so it is kind of like a blurred, smoothed out version of the image; while the high frequency content is the stuff that changes rapidly pixel-to-pixel so it is kind of like a coarser, bumpier, sharpened version of the image.

I think you are right about that but it seems strange that in the OP's customize tools screenshot, next to the Node Tool in the 5th row, the icon is for the QR Code Tool with its faint exposure triangle. On my Mac, even if I have the the QR Code Tool selected in the Tools panel, I still get the Icon for the Rectangle Tool in the 5th row. Maybe this is a Mac vs. Windows difference?

All I can tell you is the staff have mentioned in more than one discussion over the years that Affinity just provides an interface to the print services built into the OS, which in turn rely on the print drivers & their support files that are installed on the computer. IOW, it is not an 'engine' in the usual sense. From reading between the lines in some of their comments I think this may not expose all the options or settings that are available in other apps, which may amount to a bug, but that is only a guess.

Again, just keep an eye on the History panel and/or notice that if you were trying to add a layer that did not happen.

Or just keep an eye on the History panel to see if you just accidentally deleted something.

Exactly!

Are you asking for a 'are you sure you want to delete?' option if you select an object in the Layers panel & use a right-click to pop open the menu with the Delete option & select it, or do the equivalent with a keyboard shortcut? If so, there is no option to enable that but of course you can use Undo if you deleted something by accident.

Affinity has no printing engine of its own. All printing relies on the print services built into the OS & the print drivers & their support files that have been installed on the computer. A consequence of this is different printers will offer different options in the Affinity print dialog & may produce different results from printing to a different printer, even with similar options enabled.

That may work now but as I reported in this topic just after 2.5.5 was released that link took me to the 2.5.3 release notes topic.

According to the help topic these points are used to adjust the pressure profile of the curve along its nodes, so they are not actually themselves nodes, paired or otherwise. Thus, I think @walt.farrell is right & it is not possible to do what you want.

By "save with a new name" I assume you mean using Save as, but I cannot duplicate that behavior on my Mac with Save or Save as. EDIT: Please try this quick test: Create a new empty folder somewhere like on the Desktop or wherever is convenient. Give it a simple name like "test." Create a new Affinity doc, add something to it & save it to this folder. Close that doc. Open another doc from some other folder & Select "Save as..." What folder is shown in the Save as dialog, "test" or some other folder?

Not for me. It is always defaults to the last folder I saved a file to. Correct. It just defaults to the last folder a file was saved to, so it has nothing to do with the folder you opened your file from. This I think is what some many users have been complaining about.

Please refer to this earlier post & the linked discussions about there being no point in posting a "+1" comment to topics like this one in the Questions forum. These comments should be posted in the Feedback & Suggestions forum where the developers will see them.

Not sure about Windows but as I understand it, support for the Location panel on Macs comes from Location Services built into the macOS, which is why on the online help page the footnote mentions Location Services (but does not clearly state anywhere I can find that it is a Mac-only feature). So unless there is some equivalent service built into Windows (doubtful) the help topic definitely should say it is Mac-only.

You are right. I missed the 'narrow' part.

Actually, it does not (because the developers do not as a rule follow this forum). So you need to post in the appropriate section of https://forum.affinity.serif.com/index.php?/forum/52-feedback-suggestions/ ideally after checking for other similar requests.

It is for me at Text > Insert Character.

Well, I tried all that & I can select your two custom presets, but I still cannot get the burger menu to respond. BTW, selecting one & then the other did not change the preset file after restarting, nor did I expect it to since I can only select a preset but not add one of my own. Thanks for trying to help but I am beginning to accept that this is a bug that only affects Catalina users ... & probably never will be fixed.

View > Grid works fine. I don't have any APub docs with a TOC to test with but the Preflight panel also works fine. @walt.farrell sorry, I meant the 2.5.5.2636 beta.

I thought about asking for that but I think it makes sense at this point to wait for an official reply. I may try the Beta reset though. EDIT: I tried clearing everything in the just-installed 2.5.6 AD beta & nothing changed except that I will have to redo all the UI stuff that destroyed.

I tried everywhere in the general vicinity of the burger menu. Nothing happened. Same with the stand alone View > Snapping window ( which is what I assume is what you mean by menu) -- no live spots, no downward triangle like in the help topic (or in V1 on my Mac). I also used Time Machine to look back more than a year for the missing snapping_options.dat file file & can't find it anywhere. I am about ready to give up on this unless some one still running Catalina has something else to suggest.

Alas, I do not have a snapping_options.dat file at that or any other folder location I can find. I have 5 dat files there (document_defaults.dat, user/file_export_options.dat, font_map.dat, glyph_browser.dat, & and visibility_options.dat) but no others. (Same for all 3 apps).