In the last column of the grid, you'll find the actions possible on a process :
Icon Description :
a new tab is added with instances of the
corresponding process.
a new tab is added with details and
definition activities of the corresponding process.
Set the corresponding process version as
retired. (see for Section 5.6, “Process lifecycle” more
details)
Set the corresponding process version as
active. (see for Section 5.6, “Process lifecycle” more
details)
the process will be undeployed. It will
always be on the process list but its state will be undeployed and
so, it will not be possible to instantiate it.
the process will be totally removed from
engine, contrary to the undeployment.
Note that these icons are disabled when the actions are not possible.