Every now and than I see someone asking a question about how to insert a dynamic value in a text block or how to add a dynamic to an image.
Truth is that you cannot do that; however, you can overlay a variable over a region and disable 'show input data", which would achieve same result. This works great, until you would like to either move your dynamic variable or edit its units, in which case, when you click on the variable you will always activate the text/image region itself.
I propose to introduce two flags to every region & equation in SMath workbook:
1. Background / Foreground
2. Locked / Unlocked
The first tag will dictate whether the region is at the "back" or the "front" of the worksheet. I also propose for background items to be "activated" by double click only (instead of single click for a typical item)
The 2nd tag will dictate whether the item is selectable when using Click-Drag method. This will facilitate the bulk selection and movement of "Unlocked" regions only, allowing us to create highly customizable headers and footers in the document. Note that Ctrl-Click will still select the region, making sure it is movable if necessary.
I understand that Andrey has a lot on his plate and this would likely be the last item he would want to think of. However there is a small chance that addition of described functionality may be relatively easy to implement, making it a valuable addition for the amount of effort.
Now the post that has inspired this blurb:
http://en.smath.info/for...I-write-on-an-image.aspx