diff --git a/.gitignore b/.gitignore
index 2a630fd..2475d22 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 sources/build
 sources/usr
-*-src.tar.xz
+*src.tar.xz
+*src.tar.gz
diff --git a/CHANGELOG b/CHANGELOG
index 340073f..8ba6aad 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -4,6 +4,7 @@ Ver.1.8.0:
 + added $hddmbN, %hddgbN tags
 + added support of ps ($ps, $pscount, $pstotal tags)
 + added support of package managers ($pkgcountN tags)
+* refactoring of DataEngine
 
 Ver.1.7.4:
 + added support more than 10 tags in cpu, cpuclock, hdd, hddtemp, temp labels
diff --git a/CHANGELOG-RU b/CHANGELOG-RU
index 96a2120..7aa9738 100644
--- a/CHANGELOG-RU
+++ b/CHANGELOG-RU
@@ -4,6 +4,7 @@
 + добавлены теги $hddmbN, $hddgbN
 + добавлена поддержка ps (теги $ps, $pscount, $pstotal)
 + добавлена поддержка пакетных менеджеров (теги $pkgcountN)
+* рефакторинг DataEngine
 
 Вер.1.7.4:
 + добавлена поддержка более чем 10 тэгов в полях cpu, cpuclock, hdd, hddtemp, temp
diff --git a/PKGBUILD b/PKGBUILD
index d419e31..d194b1e 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -2,8 +2,8 @@
 
 pkgname=kdeplasma-applets-pytextmonitor
 _pkgname=pytextmonitor
-pkgver=1.7.4
-pkgrel=2
+pkgver=1.8.0
+pkgrel=1
 pkgdesc="Minimalistic Plasmoid script written on Python2. It looks like widgets in Awesome WM"
 arch=('i686' 'x86_64')
 url="http://arcanis.name/projects/pytextmonitor"
@@ -20,7 +20,7 @@ optdepends=("amarok: for music player monitor"
 makedepends=('automoc4' 'cmake')
 source=(https://github.com/arcan1s/pytextmonitor/releases/download/V.${pkgver}/${_pkgname}-${pkgver}-src.tar.xz)
 install=${pkgname}.install
-md5sums=('b7ab42465a3c1f12719883d754e86a51')
+md5sums=('9052985dc219e75ffbed88ce3ebf5a32')
 backup=('usr/share/config/extsysmon.conf')
 
 prepare() {
diff --git a/readme/en.md b/readme/en.md
index 19dde5e..694c01a 100644
--- a/readme/en.md
+++ b/readme/en.md
@@ -42,6 +42,10 @@ For edited output you must open Settings window and setup output format in lines
 * tag `$progress` - current song progress. One of supported music players must be installed
 * tag `$time` - current song duration. One of supported music players must be installed
 * tag `$title` - current song title. One of supported music players must be installed
+* tag `$pscount` - number of running processes
+* tag `$pstotal` - total number of processes
+* tag `$ps` - list of running processes
+* tag `$pkgcountN` - number of packages, which available to upgrade for command N. For example, `$pkgcount0`
 * tag `$custom` - returns output for custom command
 
 Label order will changed if you change slider position. HTML tags in label work normally.
@@ -102,6 +106,14 @@ Use specified device as active. Combo box items come from **network directory**.
 
 File with battery information. File (`/sys/class/power_supply/BAT0/capacity` by default) should contain only battery charge in percent.
 
+**AC online tag**
+
+Line which will be shown when AC is online.
+
+**AC offline tag**
+
+Line which will be shown when AC is offline.
+
 **AC device**
 
 File with AC information. File (`/sys/class/power_supply/AC/online` by default) must contain `1` if AC is online.
@@ -116,6 +128,12 @@ Since version 1.7.0 CPU, CPU clock, memory, swap and network labels support grap
 
 DataEngine settings
 -------------------
+**Custom command**
+
+*NOTE* This can cause the computer freeze.
+
+A command, which will be run for custom label.
+
 **GPU device**
 
 Select one of supported GPU devices. `auto` will enable auto selection. Default is `auto`.
@@ -132,11 +150,16 @@ Address of MPD server. Default is `localhost`.
 
 Port of MPD server. Default is `6600`.
 
-**Custom command**
+**Package manager**
 
-*NOTE* This can cause the computer freeze.
+List of commands, which will be run. Number of null lines is a number of unneeded lines. Defaults:
+* *Arch*: `PKGCMD=pacman -Qu`, `PKGNULL=0`
+* *Debian*: `PKGCMD=apt-show-versions -u -b`, `PKGNULL=0`
+* *Ubuntu*: `PKGCMD=aptitude search '~U'`, `PKGNULL=0`
+* *Fedora*: `PKGCMD=yum list updates`, `PKGNULL=3`
+* *FreeBSD*: `PKGCMD=pkg_version -I -l '<'`, `PKGNULL=0`
+* *Mandriva*: `PKGCMD=urpmq --auto-select`, `PKGNULL=0`
 
-A command, which will be run for custom label.
 
 DataEngine configuration
 ------------------------
@@ -182,6 +205,9 @@ Installation
 Additional information
 ======================
 
+TODO (wish list)
+----------------
+
 Links
 -----
 * [Homepage](http://arcanis.name/projects/pytextmonitor/)
diff --git a/sources/ext-sysmon/extsysmon.h b/sources/ext-sysmon/extsysmon.h
index 05d001e..eac0e7b 100644
--- a/sources/ext-sysmon/extsysmon.h
+++ b/sources/ext-sysmon/extsysmon.h
@@ -39,7 +39,6 @@ public:
                        const int pkgNull = 0);
 
 protected:
-    void readConfiguration();
     bool sourceRequestEvent(const QString &name);
     bool updateSourceEvent(const QString &source);
     QStringList sources() const;
@@ -50,6 +49,7 @@ private:
     // reread configuration
     QString getAllHdd();
     QString getAutoGpu();
+    void readConfiguration();
     QMap<QString, QString> updateConfiguration(const QMap<QString, QString> rawConfig);
 };
 
diff --git a/sources/ptm/contents/code/configdef.py b/sources/ptm/contents/code/configdef.py
index 9aadfde..e214ec7 100644
--- a/sources/ptm/contents/code/configdef.py
+++ b/sources/ptm/contents/code/configdef.py
@@ -87,8 +87,12 @@ class ConfigDefinition:
                 pkgCmd = []
                 pkgNull = []
                 for command in item:
-                    pkgCmd.append(str(command.split(QString(":"))[0]))
-                    pkgNull.append(str(command.split(QString(":"))[1]))
+                    try:
+                        pkgCmd.append(str(command.split(QString(":"))[0]))
+                        pkgNull.append(str(command.split(QString(":"))[1]))
+                    except:
+                        pkgCmd.append(str(command))
+                        pkgNull.append("0")
                 deConfigFile.write("PKGCMD=" + ','.join(pkgCmd) + "\n")
                 deConfigFile.write("PKGNULL=" + ','.join(pkgNull) + "\n")
         except: