Can any options be applied universally (ie change one file; have it apply to all)?

I know it can be done for toolbar changes.

I recently changed the location of my backup folder.  I couldn't find any way to make this option apply to all files (couldn't find anything in user manual).  So I've been opening each file to change this option.  This gets tedious pretty fast if you use multiples files.

Synching using dropbox -- adding dropbox / IQ to a new machine (or new OS install)

1. Synchronization between computers using Dropbox says to put the synced IQ file in the same location on the second machine as on the first (see A.3 at above link) -- this is not possible on machine #2 here -- is this a problem?

Also I was wondering would  is itokay to use the IQ file directly from the dropbox folder?

I have mht files that I would like displayed in the document pane. Is that possible?

Alternatively, I can convert it to html, but I then get a small htm file and a folder with the rest of the files.
Can that be displayed in the document pane somehow?

I have tried with the sample and an empty database, but get the same error when I create a new grid:

p.s. I use v0.9.117j

Is it possible to embed an Excel sheet in the document pane? Either from a local Excel workbook or from a Google Sheet?

I tried to embed a Google sheet which uses an iframe, but all I got was the html code if I simply paste.:

<iframe src="https://docs.google.com/spreadsheets/d/e/2PACX-xxxxxxxxx/pubhtml?gid=0&…"></iframe>\

If I insert it as html code, I get a blank page.

I opened the sample.SNDB database, Welcome Tab and clicked the  "Creating a shopping list" item. I get this:

Hi Pierre, hope you're having a quiet, restful, peaceful long weekend -

On my end, making use of the time to do some experimenting in Card View and have a few questions:

Continuation of my new computer saga.  I followed the directions to transfer settings and this worked, for the most part.

But my custom colors were NOT transferred and that has me worried because my notes heavily rely on assigned colors (mostly fill colors).

Is there any chance I could lose my custom color assignments in this process? 

1) Item has custom fill color "x" but "x" is no longer in the options settings

2) Item presumably displays with no fill color (or does it default to some nearby color?)

I had to replace my computer (again). 

1) Should I switch to the portable version?  I believe Pierre recommends that but I've used the full install for several years.  When I tried the portable version I had problems with losing my toolbar set up after updates (undoubtedly, my fault).

2) I still have my old C drive installation.  Can I recover settings from that? (toolbars, options settings, custom colors)

I am an ECCO user that is new to IQ and would like to have input on how to most efficiently set up IQ. I almost exclusively use ECCO as an outliner. In ECCO I
established a file for each subject. Each file would have a small number of related Notepads. The files would be kept in related folders on my computer. I am
questioning whether to use this method with IQ or to just have one IQ file with all my grids for all subjects. I could then group the grids in the one file. I