Dynamic block with two independent dropdowns (jib + mast)

[matthias_yver85]

Hello,

I'm trying to create a dynamic block of a tower crane where I can select:

• A jib length from multiple values (e.g. 65 m, 60 m, 55 m, etc.)
• A mast height from several options (e.g. 41.3 m, 39.6 m, 38.0 m, etc.)

The idea is to have two independent dropdown menus (or lists) in the same dynamic block:

• One to choose which jib to display
• One to choose which mast to display

The problem is that AutoCAD only allows one visibility parameter, which prevents me from making two separate visibility selections in one block.

So I'm looking for a method to dynamically display both the correct jib and mast block,
based on two separate lists.

Later on, I would also like to automatically position the jib depending on the selected mast height.

Thanks in advance for any tips or example blocks!

I've attached a video I found, showing a crane block where multiple parameters can be selected independently.

[Brock_Olly]

You can do this with a Lookup Table 

[matthias_yver85]

Do you hava a tutorial ?

[j.palmeL29YX]

One of several tutorials you find >here<. 

Attached a simplified example which demonstrates the principle. The block includes two vertical lines. The left line can get the length 1, 2 or 4, the right line can get the length 2, 5 or 10. 

The user can choose the length of each of the lines independently. 
Try to examine and understand the block. Feel free to ask if you have problems.