Scale - Modify

Change the overall size of an object

Home tab > Modify panel > Scale

Select objects

Cross-select the objects, then press Enter to end the selection

Specify base point

Specify scale factor: 1.5

Copy Option

Select objects

Press Enter to end the selection

Specify base point

Click Copy option on the command line

Specify scale factor: 1.2

Reference Option

Select objects

Cross-select the objects, press Enter to end the selection

Specify base point

Click Reference option on the command line

Pick the 1st point for the reference length

Specify 2nd point

Specify new length