Expert Hints, Tips, and Solutions: Object Scripting, Layer Color Palette, Big Measurements

Q: It seems that seq_find() procedure does not work correctly: if you try the following code, you will see that the required object is not found (0 is displayed).

Q: In the layer setup, I cannot change the color of the layer by mouse clicking in the palette if initially the layer’s color is black, i.e.,

RED=255, BLUE=255, GREEN=255.

Q: Often I need to measure big objects. It order to position the ruler precisely I must zoom in at one end, zoom out that zoom again in at the other end. Is it possible too make this operation more convenient? For example, can I start the measurement in one window and finish it in another one?