Allow editing (text, color) custom text box after creating it
Currently, when creating custom text box and putting it somewhere on the map, you cannot afterwards just click on it and change it. Currently, if you need to do some changes in text, you basically, need to delete previous text box and create one again. Also it is quite often needed to change color of the text, which is created. So - when adding possibility to work with the text box, it is required to holistically look at this feature, so that it can be changed, edited, color changed etc. Also - it would be required to be able to copy/paste some text box so, that you can click and edit it later.
Also - color scheme should be somehow having more than those 7 colors, since this would allow more standartization when creating text colors.
Select the text item by clicking on it. Then select “Change Text…” from the “Item” menu.