Delete measurements in the active collection

`Ctrl` + `Shift` + `m`

All hotkeys for Smartplant Review (Windows)

Function Keys Help	`F1`
Function Keys Assign Materials to Elements	`F2`
Function Keys Assign Materials to Display Set	`Ctrl` + `F2`
Function Keys Define Display Set	`F3`
Function Keys Move Display Set	`Ctrl` + `F3`
Function Keys Hide Level (Object)	`F4`
Function Keys Level Settings	`Ctrl` + `F4`
Function Keys Refresh	`F5`
Function Keys Refresh All	`Ctrl` + `F5`
Function Keys Raytrace	`Shift` + `F5`
Function Keys View Settings	`F6`
Function Keys Save and Recall (View Operations)	`Ctrl` + `F6`
Function Keys Photo-Realism Settings	`Shift` + `F6`
Function Keys Frame Show Motion	`F7`
Function Keys Motion Settings	`Ctrl` + `F7`
Function Keys Global Lighting Settings	`Shift` + `F7`
Function Keys Snaplock Measurement	`F8`
Function Keys Surface Measurement	`Ctrl` + `F8`
Function Keys Edit Measurement Collections	`Shift` + `F8`
Function Keys New Measurement Collections	`Ctrl` + `Shift` + `F8`
Function Keys Place Tag with leader line	`F9`
Function Keys Place Tag without leader line	`Ctrl` + `F9`
Function Keys Next Tag	`F10`
Function Keys Previous Tag	`Ctrl` + `F10`
Function Keys Full Screen Toggle	`F11`
Function Keys Arrange All	`Ctrl` + `F11`
Function Keys Collision Detection	`F12`
Standard Control Keys Copy Text	`Ctrl` + `c`
Standard Control Keys Find Object	`Ctrl` + `f`
Standard Control Keys Open	`Ctrl` + `o`
Standard Control Keys Print	`Ctrl` + `p`
Standard Control Keys Save	`Ctrl` + `s`
Standard Control Keys Paste Text	`Ctrl` + `v`
Standard Control Keys Cut Text	`Ctrl` + `x`
Standard Control Keys Redo	`Ctrl` + `y`
Standard Control Keys Undo	`Ctrl` + `z`
Managing Smartplan Review View Project Manager	`Alt` + `0`
Managing Smartplan Review View Position Control toolbar	`Alt` + `1`
Managing Smartplan Review View Perspective Angle toolbar	`Alt` + `2`
Managing Smartplan Review View Encircle Radius toolbar	`Alt` + `3`
Managing Smartplan Review Display Common Views control	`Alt` + `4`
Managing Smartplan Review Delete all measurement collections	`Ctrl` + `d`
Managing Smartplan Review Delete all measurements	`Ctrl` + `Alt` + `d`
Managing Smartplan Review Delete last measurement	`Ctrl` + `m`
Managing Smartplan Review Delete measurements in the active collection	`Ctrl` + `Shift` + `m`
Managing Smartplan Review Play key frame motion	`Ctrl` + `r`
Managing Smartplan Review Pause key frame motion	`Ctrl` + `Space`
Managing Smartplan Review Play a Schedule Review session	`Ctrl` + `Alt` + `r`
Managing Smartplan Review Pause a Schedule Review session	`Ctrl` + `Alt` + `Space`
Managing Smartplan Review Stop a Schedule Review session	`Ctrl` + `Alt` + `s`
Managing Smartplan Review Switch to single view layout	`Shift` + `1`
Managing Smartplan Review Switch to three view layout	`Shift` + `3`
Managing Smartplan Review Switch to four view layout	`Shift` + `4`
Managing Smartplan Review Toggle display of theMain window	`Ctrl` + `1`
Managing Smartplan Review Toggle display of the Plan window	`Ctrl` + `2`
Managing Smartplan Review Toggle display of the Elevation window	`Ctrl` + `3`
Managing Smartplan Review Toggle display of the Text window	`Ctrl` + `4`
Managing Smartplan Review Stop the current view update, key frame motion, or raytrace	`Esc`