After we select an object, we can right-click, and then select “Select Similar”,

as shown in the following picture,

This is also very useful when we need to calculate the numbers of certain type of blocks, it will filter all the objects or blocks with the same name, as shown in the following picture,

Quick Select (QSELECT)

The QSELECT command is used to create selection sets according to filter conditions.

We can filter by the object type and property, as shown in the following picture,

Object Selection Filters

Filter command is used to create a list, objects in it must meet certain conditions with the popped up Object Selection Filters dialog box, as shown in the following picture,