Where is the contrast and addition layer in the tiger board calculation book?

In the TXT text of PKPM.

First, we need to find a naming method for the new layer of PKPM. We can open PKPM's interface for drawing concrete construction drawings, find general, parameter and layer settings, right-click on the new window that pops up, and open the exported TXT file for later use. Similarly, in the parameter editor, we can see the item "layer relationship default". We open the installation directory of the flying diagram structure, find the flying diagram connection item, and open it with notepad. After adding the layer, we need to correspond to it, slide down, find the following interface, and add the corresponding relationship.