Yes, thats doable.
Complete features here:

Compare Versions

after upgrade from ver. 1.5.2 it doesnt work. i changed only lib folder for upgrade.

Hi,
We're unable to generate this issue.
If it does not work, you can send code for review.

this is my index.php codes (ver. 1.5.2)

http://hastebin.com/ewutubahus.xml

if i override lib folder for ver. 2.0, add button doesnt work

Hello,

Can you check teh firebug error console.
Perhaps there is some JS error causing this blocking.

https://phpgrid.desk.com/customer/portal/articles/926266

you are right, when i click to add button :

Uncaught TypeError: jQuery(…).abscenter is not a function

jQuery.jqGrid.beforeShowForm @ (index):19
(anonymous function) @ jquery.jqGrid.min.js:316
n.extend.each @ jquery.min.js:2
n.fn.n.each @ jquery.min.js:2
a.jgrid.extend.editGridRow @ jquery.jq
Grid.min.js:280b.fn.jqGrid @ jquery.jq
Grid.min.js:34
(anonymous function) @ jquery.jq
Grid.min.js:353
n.event.dispatch @ jquery.min.js:3
r.handle @ jquery.min.js:3

index.php :
line 18: include(PHPGRID_LIBPATH."inc/jqgrid_dist.php");
line 19:
line 20: session_start();

and i have this error onload:

Uncaught TypeError: Cannot read property 'showhidecol' of undefined

(anonymous function) @ (index):19
j @ jquery.min.js:2
k.fireWith @ jquery.min.js:2
n.extend.ready @ jquery.min.js:2
K @ jquery.min.js:2

Have you tried after clearing browser / test it new browser ?
Both cases sounds like it is still using old js files.

i cleared browser cache, server cache, cloudflare cache.
i changed computer for try again.
i uploaded files another domain

but it doesnt work 🙁

could you try yourself : http://www.burakco.net

i found whats the problem :

if i change this

<script src="lib/js/jqgrid/js/i18n/grid.locale-tr.js" type="text/javascript"></script>

to this

<script src="lib/js/jqgrid/js/i18n/grid.locale-en.js" type="text/javascript"></script>

its working.

now, how can i fix it? i want to use in turkish.

Are you using licensed version or free version?
I can send you an update after that.

free version

We'll be updating the free version build after this fix but it may take some time.
You can edit the TR language file and add following constants like in EN locale file.

nav : {
edittext: "",
…..
viewtitle: "View selected row",
// new custom constants
columns : "Columns",
showhidecol : "Select Columns to display",
bulkedit: "Bulk Edit",
bulkeditskip : "Note: Blank fields will be skipped",
clone : "Clone",
export : "Export"
},

After that it should not raise issue.

thank you very much.