Rstudio-preview version: 1.2.1244, Windows 10,

[dschief001]

pressing ALT and selecting vertical more than one line hangs R (restart session does not solve the problem...

[EconomiCurtis]

Thanks for the report.

Some system Information could be useful as well

#### System Information:
- RStudio Edition: (Desktop or Server)
- RStudio Version: 
- OS Version: 
- R Version: 

#### Also:
<!-- Depending on your issue, the following may be useful /-->
<!-- If a section isn't relevant or you can't collect it just delete that section below /-->
- RStudio diagnostics report: <!--see rstd.io/support-diagnostics-report /-->
- Your `sessionInfo()`:
- RStudio crash report: <!-- rstd.io/support-crash-report /-->
- RStudio application log files: <!-- rstd.io/support-ide-log-files /-->

[dschief001]

You're right, thanks for the information,
=> error occured twice, but seems now project related, and couldn't be reproduced instantly, therefore please close the case.
=> will poste again, if I can reproduce and in more detail characterise the error.
Thanks!