For those who are not so new to the z/OS platform the use of ISPF comes naturally but using OMVS can be a challenge. For those new to the z/OS platform who are being trained to use the ISPF environment but who prefer to use OMVS there are times you want to review a man page but for some reason don't want to get into the OMVS interface (via TSO OMVS or via ssh).
This blog discusses two ISPF dialogs that make it easy to first review man pages and the second to issue any (well most) OMVS commands from within ISPF.
OMVSMAN
OMVSMAN is the ISPF dialog to view man pages while under ISPF. Entry is using the command TSO %OMVSMAN from any ISPF command line. It is possible, even encouraged, to update your ISPF command table but that's for another blog.
Here is an initial display. Notice the comment that it is Using gman which means that on this system we have the zopen community tools installed and gman supports the Linux style man pages that the tools come with. In this system we have over 9,600 man pages as nearly all of the zopen tools are installed.

From the command line you can use the Locate command to position to a man page or use the Search command to find all man pages with a specified string. For example, a search for all pages that mention curl will result in this:

And then selecting curl will display it's man page:

After a Search use the Refresh command to rebuild the list of all man pages.
OMVSCMDS
OMVSCMDS is the ISPF dialog that is similar to ISPF option 6 for TSO commands but fully supports entering OMVS commands.
There is a command entry area at the top of three lines for your OMVS commands and below is a list of previous commands:

From this panel you can change how you review the results of the command from ISPF Browse to ISPF View.
You can enter any OMVS command you want, just be careful that some commands that use the console may not work.
You can also string multiple commands together using the && connector and you can pipe using the | connector.
For example this demonstrates using ISPF View and using the pipe connector:

Both of these tools are available at https://cbttape.org in file 312 and at https://github.com/lbdyck where many of my other tools can be found.